Engine oils from renewable isoparaffins

Abstract

An engine oil comprising a biobased hydrocarbon base oil.

What is claimed is: 
     
         1 . An engine oil comprising a biobased hydrocarbon base oil, wherein the engine oil meets the requirements of Engine Oil Viscosity Classification (J300) set by SAE and has a volatile loss of less than 13% when measured by ASTM D5800-10. 
     
     
         2 . The engine oil of  claim 1  wherein the biobased hydrocarbon base oil has a molecular weight (weight average) between 300 g/mol and 1500 g/mol. 
     
     
         3 . The engine oil of  claim 1  or  2  wherein at least about 25% of the carbon atoms in the biobased base oil originate from renewable carbon sources as measured by ASTM-D6866-12. 
     
     
         4 . An engine oil comprising a biobased base oil, wherein the biobased base oil has greater than 90% saturates as measured by ASTM-D2007-11, less than 0.03% sulfur as measured by ASTM-D1552-08(2014)e1, ASTM D2622-10, ASTM D3120-08, ASTM D4294-10, ASTM D4927-10 or equivalent method, a viscosity index as measured by ASTM D2270-10e1 greater than 120, a renewable carbon content greater than 25% as measured by ASTM-D6866-12, contains a dispersant, a detergent, a corrosion inhibitor, an antioxidant, an antifoaming agent, an anti-wear agent, and a friction modifier, and wherein the engine oil has, when determined by ASTM-D7320-13, (a) a kinematic viscosity increase, at 40° C., of no more than 150%, (b) an average weighted piston deposit rating greater than 4.0, and (c) an average cam plus lifter wear of less than 60 μm. 
     
     
         5 . An engine oil comprising a biobased Group III base oil, wherein the biobased Group III base oil has a renewable carbon content greater than 25% as measured by ASTM-D6866-12, contains a dispersant, a detergent, a corrosion inhibitor, antioxidant, an antifoaming agent, an anti-wear agent, and a friction modifier, and wherein the engine oil has, when determined by ASTM-D7320-13, (a) a kinematic viscosity increase, at 40° C., of no more than 150%, (b) an average weighted piston deposit rating greater than 4.0, and (c) an average cam plus lifter wear of less than 60 μm. 
     
     
         6 . An engine oil comprising a dispersant, a detergent, a corrosion inhibitor, antioxidant, an antifoaming agent, an antiwear agent, a friction modifier, and a biobased base oil, wherein the biobased base oil having the molecular structure:
   [B] n -[P] m      
       wherein,
 [B] is a biobased hydrocarbon repeating unit; 
 [P] is a non-biobased hydrocarbon repeating unit; 
 n is greater than 1, and m is less than 4; 
 the stereoscopic arrangement of [B] and [P] is linear, branched or cyclic; 
 the sequential arrangement of [B] and [P] is block, alternating or random; 
 the molecular weight of the biobased base oil is in range of 300 g/mol to 1500 g/mol; and 
 the biobased content of the engine oil is greater than 25%, as measured by ASTM D6866-12. 
 
     
     
         7 . The engine oil of  claim 6  wherein the molecular weight of the biobased base oil is in range of 300 g/mol to 800 g/mol. 
     
     
         8 . The engine oil of  claim 6  wherein the molecular weight of the biobased base oil is in range of 390 g/mol to 510 g/mol. 
     
     
         9 . An engine oil comprising a group III base oil, wherein the engine oil does not contain pour point depressant but contains a dispersant, a detergent, a corrosion inhibitor, an antioxidant, an antifoaming agent, an anti-wear agent, and a friction modifier, and wherein the engine oil has, when determined by ASTM-D7320-13, (a) a kinematic viscosity increase, at 40° C., of no more than 150%, (b) an average weighted piston deposit rating greater than 4.0, and (c) an average cam plus lifter wear of less than 60 μm. 
     
     
         10 . An engine oil comprising: (a) at least 50 wt % of a biobased base oil having a weight average molecular weight in the range of 300 to 1500 g/mol and a viscosity index greater than 120; and (b) wherein the engine oil has,
 (i) a cold cranking viscosity less than 6200 cP at −35° C. by ASTM D 5293-14,   (ii) a low temperature pumping viscosity less than 60000 at −40° C. by ASTM D4684-14, and   (iii) a kinematic viscosity greater than 3.8cSt at 100° C. by ASTM D445-14E2.   
     
     
         11 . The engine oil of  claim 10  wherein the engine oil has
 (a) a kinematic viscosity at 100° C. that is greater than or equal to 9.3cSt by ASTM D445-14E2, 
 (b) a kinematic viscosity at 100° C. that is less than or equal to 12.5cSt by ASTM D445-14E2, and 
 a high shear rate viscosity at 150° C. that is greater than 2.9 cP by ASTM D4683-13. 
 
     
     
         12 . The engine oil of  claim 10  wherein the engine oil has,
 a kinematic viscosity at 100° C. that is greater than or equal to 6.9cSt by ASTM D445-14E2, 
 (b) a kinematic viscosity at 100° C. that is less than or equal to 9.3cSt by ASTM D445-14E2, and 
 (c) a high shear rate viscosity at 150° C. that is greater than 2.6 cP by ASTM D4683-13. 
 
     
     
         13 . The engine oil of  claim 10  wherein the engine oil has
 (a) a kinematic viscosity at 100° C. that is greater than or equal to 6.1cSt by ASTM D445-14E2 
 (b) a kinematic viscosity at 100° C. that is less than or equal to 8.2cSt by ASTM D445-14E2, and 
 (c) a high shear rate viscosity at 150° C. that is greater than 2.3 cP by ASTM D4683-13. 
 
     
     
         14 . The engine oil of  claim 10  wherein the engine oil has
 (a) a kinematic viscosity at 100° C. that is greater than or equal to 5.0cSt by ASTM D445-14E2, 
 (b) a kinematic viscosity at 100° C. that is less than or equal to 7.1cSt by ASTM D445-14E2, and 
 (c) a high shear rate viscosity at 150° C. that is greater than 2.0 cP by ASTM D4683-13. 
 
     
     
         15 . The engine oil of  claim 10  wherein the engine oil has
 (a) a kinematic viscosity at 100° C. that is greater than or equal to 4.0cSt by ASTM D445-14E2, 
 (b) a kinematic viscosity at 100° C. that is less than or equal to 6.1cSt by ASTM D445-14E2, and 
 (c) a high shear rate viscosity at 150 ° C. that is greater than 1.7 cP by ASTM D4683-13. 
 
     
     
         16 . The engine oil of  claim 10  wherein the engine oil has
 (a) a kinematic viscosity at 100° C. that is greater than or equal to 3.0cSt by ASTM D445-14E2, 
 (b) a kinematic viscosity at 100° C. that is less than or equal to 5.1cSt by ASTM D445-14E2, and 
 (c) a high shear rate viscosity at 150° C. that is greater than 1.4 cP by ASTM D4683-13. 
 
     
     
         17 . The engine oil of any of  claims 10 - 16 , wherein the engine oil does not contain a pour point depressant. 
     
     
         18 . The engine oil of any of  claims 10 - 16 , wherein the engine oil does not contain a viscosity index improver or a viscosity modifier. 
     
     
         19 . The engine oil of any of  claims 10 - 16 , wherein the engine oil has less than 13% Noack volatility as measured by ASTM-D5800-10 method B. 
     
     
         20 . The engine oil of any of the preceding claims wherein the biobased base oil comprises at least 95% non-cyclic isoparaffins having a molecular structure in which 25-34% of total carbon atoms are contained in the branches and less than half of the total isoparaffin branches contain two or more carbon atoms and the engine oil has a renewable hydrocarbon content greater than 25%, as measured by ASTM-D6866 method. 
     
     
         21 . The engine oil of any of the preceding claims wherein the biobased base oil additionally has an average methyl branch index (methyl branches per 100 carbons) of at least 7. 
     
     
         22 . The engine oil of any of the preceding claims wherein the biobased base oil additionally has an average methyl branch index (methyl branches per 100 carbons) of at least 8. 
     
     
         23 . The engine oil of any of the preceding claims wherein the biobased base oil additionally has an average methyl branch index (methyl branches per 100 carbons) of at least 9. 
     
     
         24 . The engine oil of any of the preceding claims wherein the biobased base oil additionally has an average methyl branch index (methyl branches per 100 carbons) of at least 10. 
     
     
         25 . The engine oil of any of the preceding claims wherein the biobased base oil additionally has an average methyl branch index (methyl branches per 100 carbons) of at least 11. 
     
     
         26 . The engine oil of any of the preceding claims wherein the biobased base oil additionally has an average methyl branch index (methyl branches per 100 carbons) of at least 15. 
     
     
         27 . The engine oil of any of the preceding claims wherein the biobased base oil additionally has an average methyl branch index (methyl branches per 100 carbons) of at least 20. 
     
     
         28 . The engine oil of any of the preceding claims wherein the biobased base oil additionally has an average methyl branch index (methyl branches per 100 carbons) of at least 22. 
     
     
         29 . The engine oil of any of the preceding claims wherein the biobased base oil additionally has an average methyl branch index (methyl branches per 100 carbons) of at least 24. 
     
     
         30 . The engine oil of any of the preceding claims wherein the biobased base oil additionally has an average methyl branch index (methyl branches per 100 carbons) of at least 26. 
     
     
         31 . The engine oil of any of the preceding claims wherein the biobased base oil additionally has an average methyl branch index (methyl branches per 100 carbons) of at least 27. 
     
     
         32 . The engine oil of any of the preceding claims wherein at least 95 wt % of the biobased base oil comprises acyclic isoparaffins and at least 25 wt % of the acyclic isoparaffins are hydrogenated sesquiterpenoid monomer units. 
     
     
         33 . The engine oil of  claim 32  wherein at least 30 wt % of the acyclic isoparaffins are hydrogenated sesquiterpenoid monomer units. 
     
     
         34 . The engine oil of  claim 32  wherein at least 35 wt % of the acyclic isoparaffins are hydrogenated sesquiterpenoid monomer units. 
     
     
         35 . The engine oil of  claim 32  wherein at least 45 wt % of the acyclic isoparaffins are hydrogenated sesquiterpenoid monomer units. 
     
     
         36 . The engine oil of any of the preceding claims wherein at least about 40% of the carbon atoms in the biobased base oil originate from renewable carbon sources as measured by ASTM-D6866-12. 
     
     
         37 . The engine oil of any of the preceding claims wherein at least about 50% of the carbon atoms in the biobased base oil originate from renewable carbon sources as measured by ASTM-D6866-12. 
     
     
         38 . The engine oil of any of the preceding claims wherein at least about 60% of the carbon atoms in the biobased base oil originate from renewable carbon sources as measured by ASTM-D6866-12. 
     
     
         39 . The engine oil of any of the preceding claims wherein at least about 70% of the carbon atoms in the biobased base oil originate from renewable carbon sources as measured by ASTM-D6866-12. 
     
     
         40 . The engine oil of any of the preceding claims wherein at least about 80% of the carbon atoms in the biobased base oil originate from renewable carbon sources as measured by ASTM-D6866-12. 
     
     
         41 . The engine oil of any of the preceding claims wherein at least about 90% of the carbon atoms in the biobased base oil originate from renewable carbon sources as measured by ASTM-D6866-12. 
     
     
         42 . An engine oil comprising a biobased base oil, wherein the biobased base oil has greater than 50% of biodegradation in 28 days according to OECD 301B test method, the biobased base oil constitutes at least 50 wt % of the engine oil, and wherein the engine oil has, when determined by ASTM-D7320-13, (a) a kinematic viscosity increase, at 40° C., of no more than 150%, (b) an average weighted piston deposit rating greater than 4.0, and (c) an average cam plus lifter wear of less than 60 μm. 
     
     
         43 . The engine oil of any of the preceding claims wherein the biobased base oil has greater than 50% of biodegradation in 28 days according to OECD 301B test method. 
     
     
         44 . The engine oil of any of the preceding claims wherein the biobased base oil has greater than 60% of biodegradation in 28 days according to OECD 301B test method. 
     
     
         45 . The engine oil of any of the preceding claims wherein the biobased base oil has greater than 70% of biodegradation in 28 days according to OECD 301B test method. 
     
     
         46 . An engine oil comprising a biobased base oil and an additive package wherein (i) the engine oil and an otherwise identical engine oil comprising the additive package and a Group I, Group II or Group III base oil but no biobased base oil each satisfy the requirements of Engine Oil Viscosity Classification (J300) set by SAE and has a volatile loss of less than 13% when measured by ASTM D5800-10 and (ii) the engine oil even in the absence of additional solubilizer, co-base oil or co-solvent outperforms the otherwise identical engine oil in the Engine Oil Viscosity Classification (J300) and ASTM D5800-10 tests. 
     
     
         47 . An engine oil comprising a biobased base oil and at least 0.1 wt % of an additive package comprising a dispersant, a detergent, a corrosion inhibitor, an antioxidant, an antifoaming agent, an antiwear agent, and a friction modifier, wherein the engine oil is compatible with engine oils formulated using Group I, Group II, or Group III base oil, meets requirements of Engine Oil Viscosity Classification (J300) set by SAE and has a volatile loss of less than 13% when measured by ASTM D5800-10. 
     
     
         48 . An engine oil meeting performance requirements by SAE J300 specification, the engine oil comprising:
 (a) 1 to 95 wt % of a biobased hydrocarbon base oil;   (b) up to 80 wt % of one or more co-base oils, wherein the co-base oil(s) are selected from Group I, Group II, Group III, Group IV, and Group V base oils and combinations thereof, and   (c) up to 30 wt % of one or more additives selected from the group consisting of anti-foaming agents, anti-wear agents, anti-oxidants, demulsifiers, detergents, dispersants, extreme pressure agents, friction modifiers, metal deactivators, pour point depressants, rust and corrosion inhibitors, viscosity modifiers, and combinations thereof.   
     
     
         49 . An engine oil according to any preceding claim, wherein the biobased base oil is characterized by a viscosity index (VI) greater than 120, as measured in accordance with ASTM D2270-10e1, and has a branch ratio of less than 0.41. 
     
     
         50 . An engine oil according to any preceding claim, wherein the biobased base oil is characterized by a viscosity index (VI) greater than 120, as measured in accordance with ASTM D2270-10e1, and greater than 40% of the biobased base oil molecules have more than 3 methyl branch per molecule. 
     
     
         51 . The engine oil of  claim 50  wherein at least 50% of the biobased base oil molecules have more than 3 methyl branch per molecule. 
     
     
         52 . The engine oil of  claim 50  wherein at least 60% of the biobased base oil molecules have more than 3 methyl branch per molecule. 
     
     
         53 . An engine oil according to any preceding claim, wherein the biobased base oil is characterized by a viscosity index (VI) greater than 120, as measured in accordance with ASTM D2270-10e1, and greater than 25% of the biobased base oil molecules have more than 6 methyl branch per molecule. 
     
     
         54 . The engine oil of  claim 53  wherein at least 30% of the biobased base oil molecules have more than 3 methyl branch per molecule. 
     
     
         55 . The engine oil of  claim 53  wherein at least 40% of the biobased base oil molecules have more than 3 methyl branch per molecule. 
     
     
         56 . The engine oil of  claim 53  wherein at least 50% of the biobased base oil molecules have more than 3 methyl branch per molecule. 
     
     
         57 . The engine oil of  claim 53  wherein at least 60% of the biobased base oil molecules have more than 3 methyl branch per molecule. 
     
     
         58 . The engine oil according to any preceding claim wherein the engine oil contains about 2 to 50 wt % of one or more co-base oils selected from Group I, Group II, Group III, Group IV, Group V, and re-refined base oils, and combinations thereof. 
     
     
         59 . The engine oil according to any preceding claim wherein the engine oil contains a Group V co-base oil selected from alkylated aromatics, polyalkylene glycols, esters, estolides, and mixtures thereof. 
     
     
         60 . The engine oil according to any preceding claim wherein the engine oil comprises 5 to 50 wt % of a biobased hydrocarbon base oil and 1 to 50 wt % of one or more co-base oils, wherein the co-base oil(s) are selected from Group I, Group II, Group III, Group IV, and Group V base oils and combinations thereof. 
     
     
         61 . The engine oil according to any preceding claim wherein the engine oil comprises 5 to 50 wt % of a biobased hydrocarbon base oil and 1 to 50 wt % of one or more co-base oils, wherein the co-base oil(s) are selected from non biobased Group III base oils and base oil blend has cranking viscosity less than 3000 cP at −35° C. as measured by ASTM-D5293-14 and Noack volatility less than 13% as measured by ASTM-D5800-10. 
     
     
         62 . The engine oil according to any preceding claim wherein the engine oil comprises 5 to 50 wt % of a biobased hydrocarbon base oil and 1 to 50 wt % of one or more co-base oils, wherein the co-base oil(s) are selected from non biobased Group IV base oils and base oil blend has cranking viscosity less than 3000 cP at −35° C. as measured by ASTM-D5293-14 and kinematic viscosity greater than 4cSt at 100° C. as measured by ASTM-D445-14E2, and the engine oil has low temperature pumping viscosity less than 11,000 cP at −40° C. as measured by ASTM-D4684-14. 
     
     
         63 . The engine oil according to any preceding claim wherein the engine oil comprises 5 to 50 wt % of a biobased hydrocarbon base oil and 1 to 50 wt % of one or more co-base oils, wherein the co-base oil(s) are selected from biobased Group IV base oils and base oil blend has cranking viscosity less than 3000 cP at -35° C. as measured by ASTM-D5293-14, and kinematic viscosity greater than 4cSt at 100° C. as measured by ASTM-D445-14E2, wherein the engine oil has low temperature pumping viscosity less than 11,000 cP at −40° C. as measured by ASTM-D4684-14 and has renewable carbon content greater than 50% as measured by ASTM-D6866-12. 
     
     
         64 . The engine oil according to any preceding claim wherein the engine oil comprises 5 to 50 wt % of a biobased hydrocarbon base oil and 1 to 50 wt % of one or more co-base oils, wherein the co-base oil(s) are selected from biobased Group V base oils and base oil blend has cranking viscosity less than 3000 cP at −35° C. as measured by ASTM-D5293-14, and kinematic viscosity greater than 4cSt at 100° C. as measured by ASTM-D445-14E2, wherein the engine oil has low temperature pumping viscosity less than 60,000 cP at −40° C. as measured by ASTM-D4684-14 and has renewable carbon content greater than 50% as measured by ASTM-D6866-12. 
     
     
         65 . The engine oil according to any preceding claim wherein the engine oil comprises 5 to 50 wt % of a biobased hydrocarbon base oil and 1 to 50 wt % of one or more co-base oils, wherein the co-base oil(s) are selected from estolide base oils and base oil blend has cranking viscosity less than 3000 cP at −35° C. as measured by ASTM-D5293-14, and kinematic viscosity greater than 4cSt at 100° C. as measured by ASTM-D445-14E2, wherein the engine oil has less than 11,000 cP at −40° C. as measured by ASTM-D4684-14 and has renewable carbon content greater than 50% as measured by ASTM-D6866-12. 
     
     
         66 . The engine oil according to  claim 63 ,  64  or  65  wherein the engine oil has a renewable carbon content greater than 60% as measured by ASTM-D6866-12. 
     
     
         67 . The engine oil according to  claim 63 ,  64  or  65  wherein the engine oil has renewable carbon content greater than 70% as measured by ASTM-D6866-12. 
     
     
         68 . The engine oil according to  claim 63 ,  64  or  65  wherein the engine oil has renewable carbon content greater than 80% as measured by ASTM-D6866-12. 
     
     
         69 . The engine oil according to  claim 63 ,  64  or  65  wherein the engine oil has renewable carbon content greater than 90% as measured by ASTM-D6866-12. 
     
     
         70 . The engine oil according to any preceding claim wherein the engine oil comprises 5 to 50 wt % of a biobased hydrocarbon base oil and 1 to 50 wt % of one or more co-base oils, wherein the co-base oil(s) are selected from biobased esters and base oil blend has greater than 60% of biodegradability at 28 days as measured by OECD-301B, wherein the engine oil has renewable carbon content greater than 50% as measured by ASTM-D6866-12. 
     
     
         71 . The engine oil of any preceding claim, wherein the average molecular weight of the base oil is between about 300 and about 1500 g/mol. 
     
     
         72 . The engine oil of any preceding claim, wherein the base oil has a saturate content of at least 90% as determined by ASTM-D2007-11. 
     
     
         73 . The engine oil of any preceding claim, wherein the engine oil has, when determined by ASTM-D7320-13,
 (a) a kinematic viscosity increase, at 40° C., of no more than 150%,   (b) an average weighted piston deposit rating greater than 4.0, and   (c) an average cam plus lifter wear of less than 60 μm.   
     
     
         74 . The engine oil of any preceding claim, wherein the engine oil has average cam wear less than 90 pm as measured by ASTM-D6891-14 
     
     
         75 . The engine oil of any preceding claim, wherein the engine oil has, when determined by ASTM-D6593-14,
 (a) an average engine sludge merit greater than 8.0   (b) an average engine rocker cover sludge merit greater than 8.3   (c) an average engine varnish merit greater than 8.9   (d) an average piston skirt varnish merit greater than 7.5   (e) an oil sludge screen sludge less than 15 area %.   
     
     
         76 . The engine oil of any preceding claim, wherein the engine oil has, when determined by ASTM-D7589-14, a total fuel economy index of at least 1.5% and a fuel economy index after 100 hrs aging of at least 0.6%. 
     
     
         77 . The engine oil of  claim 76 , wherein the engine oil has, when determined by ASTM-D7589-14,
 (a) a kinematic viscosity, at 100° C., of at least 5.6cSt as measured by ASTM-D445-14e2,   (b) a kinematic viscosity, at 100° C., less than 9.3cSt as measured by ASTM-D445-14e2,   (c) a total fuel economy index of no less than 2.6%, and   (d) a fuel economy index after 100 hrs aging of no less than 1.2%.   
     
     
         78 . The engine oil of  claim 76 , wherein the engine oil has, when determined by ASTM-D7589-14,
 (a) a kinematic viscosity, at 100° C., no less than 9.3cSt as measured by ASTM-D445-14e2   (b) a kinematic viscosity, at 100° C., less than 12.5cSt as measured by ASTM-D445-14e2   (c) a total fuel economy index no less than 1.9%, and   (d) a fuel economy index after 100 hrs aging of no less than 0.9%.   
     
     
         79 . The engine oil of any preceding claim, wherein the engine oil has a bearing weight loss value of no more than 26 mg of when measured by ASTM-D6709-14. 
     
     
         80 . The engine oil of any preceding claim, wherein the base oil has an aniline point greater than 115° C. 
     
     
         81 . An engine oil comprising a biobased base oil with renewable carbon content greater than 25% as measured by ASTM-D6866-12, and having a pour point of less than −40° C. by ASTM-D97-12 in the absence of a pour point depressant. 
     
     
         82 . The engine oil of any preceding claim, wherein the engine oil meets the requirements of ILSAC GF-5. 
     
     
         83 . The engine oil of any preceding claim, wherein the engine oil meets the requirements of ILSAC GF-6 
     
     
         84 . The engine oil of any preceding claim, wherein the engine oil meets the requirements of API SN. 
     
     
         85 . The engine oil of any preceding claim, wherein the engine oil meets the requirements of dexos. 
     
     
         86 . The engine oil of any preceding claim, wherein the engine oil meets the requirements of ACEA-A1, ACEA-A2, ACEA-A3, ACEA-B1, ACEA-B2, ACEA-B3, and ACEA-B4. 
     
     
         87 . The engine oil of any preceding claim, wherein the engine oil meets the requirements of ACEA-E1, ACEA-E2, ACEA-E3, and ACEA-E4. 
     
     
         88 . The engine oil of any preceding claim, wherein the engine oil meets the requirements of PC-11. 
     
     
         89 . The engine oil of any of  claims 81  to  88  wherein the engine oil does not contain a pour point depressant or a viscosity modifier and has less than 13% Noack volatility as measured by ASTM-D5800-10 method B. 
     
     
         90 . An engine oil comprising a base oil, wherein
 (a) greater than 25% of the base oil is biobased hydrocarbon base oil,   (b) greater than 40% of hydrocarbon molecules comprised by the base oil comprise an odd number of carbon atoms per molecule,   (c) the engine oil contains a dispersant, a detergent, a corrosion inhibitor, antioxidant, an antifoaming agent, an anti-wear agent, and a friction modifier, and   (d) the engine oil has, when determined by ASTM-D7320-13, (i) a kinematic viscosity increase, at 40° C., of no more than 150%, (ii) an average weighted piston deposit rating greater than 4.0, and (iii) an average cam plus lifter wear of less than 60 pm.   
     
     
         91 . The engine oil of  claim 90  wherein at least 50% of hydrocarbon molecules comprised by the base oil comprise an odd number of carbon atoms per molecule. 
     
     
         92 . The engine oil of  claim 90  wherein at least 60% of hydrocarbon molecules comprised by the base oil comprise an odd number of carbon atoms per molecule. 
     
     
         93 . The engine oil of  claim 90  wherein at least 70% of hydrocarbon molecules comprised by the base oil comprise an odd number of carbon atoms per molecule. 
     
     
         94 . The engine oil of  claim 90  wherein at least 80% of hydrocarbon molecules comprised by the base oil comprise an odd number of carbon atoms per molecule. 
     
     
         95 . The engine oil of any of  claims 90 - 94  wherein at least 50% of the base oil is biobased hydrocarbon base oil. 
     
     
         96 . The engine oil of any of  claims 90 - 94  wherein at least 60% of the base oil is biobased hydrocarbon base oil. 
     
     
         97 . The engine oil of any of  claims 90 - 94  wherein at least 70% of the base oil is biobased hydrocarbon base oil. 
     
     
         98 . The engine oil of any of  claims 90 - 94  wherein at least 80% of the base oil is biobased hydrocarbon base oil. 
     
     
         99 . The engine oil of any of  claims 90 - 94  wherein at least 90% of the base oil is biobased hydrocarbon base oil. 
     
     
         100 . The engine oil of any of  claims 90 - 94  wherein at least 95% of the base oil is biobased hydrocarbon base oil. 
     
     
         101 . The engine oil of any preceding claim, wherein the engine oil is biodegradable. 
     
     
         102 . The engine oil of any of the preceding claims wherein the biobased base oil has greater than 60% of biodegradation in 28 days according to OECD 301B test method. 
     
     
         103 . The engine oil of any of the preceding claims wherein the biobased base oil has greater than 70% of biodegradation in 28 days according to OECD 301B test method. 
     
     
         104 . The engine oil of any preceding claim, wherein the base oil comprises a biobased terpene selected from the group consisting of myrcene, ocimene, farnesene, and combinations thereof. 
     
     
         105 . The engine oil of any preceding claim, wherein the base oil comprises farnesene. 
     
     
         106 . The engine oil of  claim 105  wherein the engine oil does not contain a pour point depressant or a viscosity modifier, and has less than 13% Noack volatility as measured by ASTM-D5800-10 method B. 
     
     
         107 . The engine oil of any of preceding claim, wherein the engine oil comprises about 50 wt % to about 99 wt % biobased hydrocarbon base oil and from about 0.2 to about 20 wt % of an additive package. 
     
     
         108 . The engine oil of  claim 107  wherein the additive package comprises at least one additive selected from the group consisting of anti-foaming agents, anti-wear agents, anti-oxidants, demulsifiers, detergents, dispersants, extreme pressure agents, friction modifiers, metal deactivators, pour point depressants, rust and corrosion inhibitors, viscosity modifiers, and combinations thereof. 
     
     
         109 . The engine oil of  claim 108  wherein the additive package comprises an anti-wear additive selected from the group consisting of ashless, zinc-free, and zinc-containing, anti-wear additives, and combinations thereof. 
     
     
         110 . The engine oil of any preceding claim, wherein the engine oil contains between about 0.1 wt % and about 1 wt % of a phenolic anti-oxidant. 
     
     
         111 . The engine oil of any preceding claim, wherein the engine oil contains up to about 5 wt % of anti-wear additive. 
     
     
         112 . The engine oil of any preceding claim wherein the anti-wear additive contains an amine phosphate anti-wear additive and the engine oil further comprises up to about 1 wt % of the anti-wear additive(s). 
     
     
         113 . The engine oil of any preceding claim, wherein the engine oil contains a viscosity index improver. 
     
     
         114 . The engine oil of any preceding claim wherein the engine oil contains at least 1 wt % of the viscosity index improver, wherein viscosity index improver is selected from polyisobutylene, high molecular weight poly alpha olefin, olefin copolymer, functionalized olefin copolymer, polymethacrylate, polyalkylmethacrylate, copolymers of styrene/isoprene, copolymers of styrene/butadiene, copolymers of isorprene/butadiene, copolymers of isoprene/divinylbenzene, polyisoprene, and polybutadiene with stereoscopic structure of such polymer molecules are selected from star-shaped structure, asterisk shaped structure, linear chain structure, and branched chain structure. 
     
     
         115 . The engine oil of any preceding claim wherein the biobased base oil is derived from farnesene. 
     
     
         116 . The engine oil of any preceding claim wherein the biobased base oil is derived from sugar. 
     
     
         117 . In an apparatus comprising an internal combustion engine lubricated by an engine oil, the improvement comprising an engine oil according to any of the preceding claims. 
     
     
         118 . A process for formulating an engine oil, the process comprising combining a biobased base oil with an additive mixture and a viscosity modifier to form a first combination that meets or exceeds the performance requirements of one or more of the following engine oil certification programs: ILSAC GF-5, ILSAC GF-6, API SN, dexos, CJ-4, ACEA-A1, ACEA-A2, ACEA-A3, ACEA-B1, ACEA-B2, ACEA-B3, ACEA-B4, ACEA-E1, ACEA-E2, ACEA-E3, ACEA-E4, and PC-11, wherein
 (a) the additive mixture comprises two or more of additives selected from the group consisting of anti-foaming agents, anti-wear agents, anti-oxidants, demulsifiers, detergents, dispersants, extreme pressure agents, friction modifiers, metal deactivators, pour point depressants, rust and corrosion inhibitors, viscosity modifiers, and combinations thereof, and   (b) the additive mixture without variation of the combination of additives or the relative proportions thereof within the additive mixture may alternatively be combined with a non-biobased Group I, a Group II, a Group III or a Group IV base oil, or a combination thereof and a viscosity modifier to form a second combination that meets or exceeds the performance requirements of one or more of the following engine oil certification programs: ILSAC GF-5, ILSAC GF-6, API SN, dexos, CJ-4, ACEA-A1, ACEA-A2, ACEA-A3, ACEA-B1, ACEA-B2, ACEA-B3, ACEA-B4, ACEA-E1, ACEA-E2, ACEA-E3, ACEA-E4, and PC-11.