TECHNOLOGY FOCUS - BIOTECHNOLOGY - Preferred Composition: Alternatively, hydrocarbon composition comprises at least about 12% renewable components comprising butanol, where the composition is capable of being used with an elastomer, where the elastomer has a durometer hardness of from about 20 to about 90 units after contact with the composition. Hydrocarbon composition comprises at least about 12% renewable components comprising butanol, where the composition is capable of being used with an elastomer, where the elastomer has a change in durometer hardness of less than about 6% after contact with the composition. Hydrocarbon composition comprises at least about 12% renewable components comprising butanol, where the composition is capable of being used with an elastomer, where the change in tensile strength of the elastomer upon contact with the composition is substantially the same or less than the change in tensile strength of the elastomer upon contact with a hydrocarbon composition comprising no more than about 10% ethanol. Hydrocarbon composition comprises at least about 12% renewable components comprising butanol, where the composition is capable of being used with an elastomer, where the elastomer has a change in tensile strength or elongation of less than about 70% after contact with the composition. Hydrocarbon composition comprises at least about 12% renewable components comprising butanol, where the composition is capable of being used with an elastomer, where the change in hardness of the elastomer upon contact with the composition is substantially the same or less than the change in hardness of the elastomer upon contact with a hydrocarbon composition comprising no more than about 10% ethanol. Hydrocarbon composition comprises at least about 12% renewable components comprising butanol, where the composition is capable of being used with an elastomer, where the elastomer has a change in hardness of less than about 20% after contact with the composition. Hydrocarbon composition comprises at least about 12% renewable components comprising butanol, where the composition is capable of being used with an elastomer, where the change in volume of the elastomer upon contact with the composition is substantially the same or less than the change in volume of the elastomer upon contact with a hydrocarbon composition comprising no more than about 10% ethanol. Hydrocarbon composition comprises at least about 12% renewable components comprising butanol, where the composition is capable of being used with an elastomer, where the elastomer has a change in volume of less than about 160% after contact with the composition. Hydrocarbon composition comprises at least about 12% renewable components comprising butanol, where the composition is capable of being used with an elastomer, where the change in mass of the elastomer upon contact with the composition is substantially the same or less than the change in mass of the elastomer upon contact with a hydrocarbon composition comprising no more than about 10% ethanol. Hydrocarbon composition comprises at least about 12% renewable components comprising butanol, where the composition is capable of being used with an elastomer, where the change in indentation hardness of the elastomer upon contact with the composition is substantially the same or less than the change in indentation hardness of the elastomer upon contact with a hydrocarbon composition comprising no more than about 10% ethanol. Hydrocarbon composition comprises at least about 12% renewable components comprising butanol, where the composition is capable of being used with an elastomer, where the elastomer has an indentation hardness of from about 30 to about 65 units of Barcol hardness after contact with the composition. Hydrocarbon composition comprises at least about 12% renewable components comprising butanol, where the composition is capable of being used with an elastomer, where the change in international hardness of the elastomer upon contact with the composition is substantially the same or less than the change in international hardness of the elastomer upon contact with a hydrocarbon composition comprising no more than about 10% ethanol. Hydrocarbon composition comprises at least about 12% renewable components comprising butanol, where the composition is capable of being used with an elastomer, where the elastomer has an international hardness of from about 10 to about 100 International Rubber Hardness Determination (IRHD) units after contact with the composition. Hydrocarbon composition comprises at least about 12% renewable components comprising butanol, where the composition is capable of being used with a fiberglass tank resin or sealant, where the change in durometer hardness of the resin or sealant upon contact with the composition is substantially the same or less than the change in durometer hardness of the resin or sealant upon contact with a hydrocarbon composition comprising no more than about 10% ethanol. Hydrocarbon composition comprises at least about 12% renewable components comprising butanol, where the composition is capable of being used with a fiberglass tank resin or sealant, where the resin or sealant has a change in durometer hardness of from about 20 to about 90 units after contact with the composition. Hydrocarbon composition comprises at least about 12% renewable components comprising butanol, where the composition is capable of being used with a fiberglass tank resin or sealant, where the resin or sealant has a change in durometer hardness of less than about 6% after contact with the composition. Hydrocarbon composition comprises at least about 12% renewable components comprising butanol, where the composition is capable of being used with a fiberglass tank resin or sealant, where the change in indentation hardness of the resin or sealant upon contact with the composition is substantially the same or less than the change in indentation hardness of the resin or sealant upon contact with a hydrocarbon composition comprising no more than about 10% ethanol. Hydrocarbon composition comprises at least about 12% renewable components comprising butanol, where the composition is capable of being used with a fiberglass tank resin or sealant, where the resin or sealant has an indentation hardness of from about 30 to about 65 units of Barcol hardness after contact with the composition. Hydrocarbon composition comprises at least about 12% renewable components comprising butanol, where the composition is capable of being used with a fiberglass tank resin or sealant, where the change in flexural strength of the resin or sealant upon contact with the composition is substantially the same or less than the change in flexural strength of the resin or sealant upon contact with a hydrocarbon composition comprising no more than about 10% ethanol. Hydrocarbon composition comprises at least about 12% renewable components comprising butanol, where the composition is capable of being used with a fiberglass tank resin or sealant, where the resin or sealant has a flexural strength of from about 10x103 to about 30x103 pounds per square inch (psi) after contact with the composition. Hydrocarbon composition comprises at least about 12% renewable components comprising butanol, where the composition is capable of being used with a fiberglass tank resin or sealant, where the resin or sealant has substantially no visual signs of leaching or delamination after contact with the composition. Hydrocarbon composition comprises at least about 12% renewable components comprising butanol, where the composition is capable of being used with a fiberglass tank resin or sealant, where the change in volume of the resin or sealant upon contact with the composition is substantially the same or less than the change in volume of the resin or sealant upon contact with a hydrocarbon composition comprising no more than about 10% ethanol. Hydrocarbon composition comprises at least about 12% renewable components comprising butanol, where the composition is capable of being used with a fiberglass tank resin or sealant, where the resin or sealant has a change in volume of less than about 160% after contact with the composition. Hydrocarbon composition comprises at least about 12% renewable components comprising butanol, where the composition is capable of being used with a fiberglass tank resin or sealant, where the change in mass of the resin or sealant upon contact with the composition is substantially the same or less than the change in mass of the resin or sealant upon contact with a hydrocarbon composition comprising no more than about 10% ethanol. Hydrocarbon composition comprises at least about 12% renewable components comprising butanol, where the electrical conductivity of the composition is substantially the same or less than the electrical conductivity of a hydrocarbon composition comprising no more than about 10% ethanol. Hydrocarbon composition comprises at least about 12% renewable components comprising butanol, where the composition has an electrical conductivity that does not cause static build-up, static discharge, or galvanic corrosion. Hydrocarbon composition comprises at least about 12% renewable components comprising butanol, where the composition has an electrical conductivity of at least about 10 pS/m. Hydrocarbon composition comprises at least about 12% renewable components comprising butanol, where the composition has an exhaust, evaporative or permeation emission that is substantially the same or less a hydrocarbon composition comprising no more than about 10% ethanol. Hydrocarbon composition comprises at least about 12% renewable components comprising butanol identified by the method above as having substantially the same or improved properties when compared to a hydrocarbon composition comprising no more than about 10% ethanol. The composition is compatible with the elastomer. The durometer hardness is measured according to ASTM D2240. The elastomer is selected from FKM fluoroelastomer, ethylene oxide copolymer, VQM fluorosilicone rubber, hydrogenated acrylonitrile butadiene rubber, acrylonitrile butadiene rubber, silicon rubber, chlorinated polyethylene, chloroprene rubber, styrene butadiene rubber, terpolymer of ethylene propylene diene monomer rubber, vulcanized rubber, and thermoplastic elastomer. The elongation is measured according to ASTM D471. The hardness is measured according to ASTM D471. Volume is measured according to ASTM D471. The mass is measured according to ASTM D471. The elastomer is selected from the group consisting of chlorinated polyethylene, epichlorohydride, chlorosulfonated polyethylene synthetic rubber, and fluoropolymer elastomer. The indentation hardness is measured according to ASTM D2583. Elastomer is selected from styrene-acrylonitrile, unsaturated polyester resin, and polyester laminate. The international hardness is measured according to ASTM D1415. Elastomer is a vulcanized rubber or a thermoplastic rubber. The composition is compatible with the resin or sealant. Flexural strength is measured according to ASTM D790. The resin or sealant is selected from high density polyethylene (HDP), fluorinated HDP, polypropylene, acetal homopolymer, acetal copolymer, polyethylene terephthalate polyester, polyethylene terephthalate glycol copolyester, polybutylene terephthalate polyester, cork, nylon, polyvinylidene fluoride, polytetrafluoroethylene, polyphenylene sulfide, isophthalic polyester resin, terephthalic polyester resin, epoxy novolac vinyl ester resin, epoxy resin, polythiourea, and nitrile. The electrical conductivity is measured according to ASTM D2624 or ASTM D4308. The measured emissions component is carbon monoxide, oxides of nitrogen, carbon dioxide, total hydrocarbons, methane, benzene, 1,3-butadiene, formaldehyde or acetaldehyde. The total hydrocarbons comprise a polycyclic aromatic hydrocarbon, where polycyclic aromatic hydrocarbon is acenaphthene, acenaphthylene, anthracene, benzo(a)anthracene, benzo(b)fluoranthene, benzo(k)fluoranthene, benzo(g,h,i)perylene, benzo(a)pyrene, benzo(e)pyrene, chrysene, dibenzo(a,h) anthracene, fluoranthene, fluorene, indeno(1,2,3-cd)pyrene, 2-methylnaphthalene, naphthalene, phenanthrene, perylene, or pyrene. Total hydrocarbons comprise ethane, ethylene, acetylene, propane, propylene, trans-2-butene, butane, 1-butene, 2-methylpropene, 2,2-dimethypropane, propyne, 1,3-butadiene, 2-methylpropane, 1-butyne, or cis-2-butene. Preferred Method: In comparing compatibility of butanol composition with elastomer to the compatibility of ethanol composition with the same elastomer, contacting is for at least about one week at a temperature of no greater than about 40 degrees C. The method further comprises curing the elastomer prior to the contacting; and cutting the elastomer into a slab prior to the contacting. The physical or chemical property of the elastomer is mass swell,volume swell, elongation, hardness, tensile strength, or permeability. Hardness is measured with a durometer. The tensile strength is measured according to ASTM D412. The permeability is measured according to SAE J2665. The mass swell or volume swell is measured according to ASTM D471. In comparing compatibility of butanol composition with fiberglass resin or sealant to the compatibility of ethanol composition with the same fiberglass resin or sealant, the physical or chemical property of the fiberglass resin or sealant is leaching, delamination, mass swell, volume swell, hardness, or flexural strength. Leaching or delamination is measured visually. Leaching or delamination is measured with metallographic or microscopic examination. The hardness is measured according to the Barcol hardness test. The flexural strength is measured according to ASTM D790. Fiberglass resin or sealant is selected from high density polyethylene (HDP), fluorinated HDP, polypropylene, acetal homopolymer, acetal copolymer, polyethylene terephthalate polyester, polyethylene terephthalate glycol copolyester, polybutylene terephthalate polyester, cork, nylon, polyvinylidene fluoride, polytetrafluoroethylene, polyphenylene sulfide, isophthalic polyester resin, terephthalic polyester resin, epoxy novolac vinyl ester resin, epoxy resin, polythiourea, and nitrile. In comparing electrical conductivity of butanol composition to electrical conductivity of ethanol composition, the electrical conductivity is measured according to ASTM D2624 or ASTM D4308. In comparing exhaust emission of butanol composition to exhaust emission of ethanol composition, the exhaust emission is carbon monoxide, oxides of nitrogen, carbon dioxide, total hydrocarbons, methane, benzene, 1,3-butadiene, formaldehyde or acetaldehyde. Total hydrocarbon comprises a polycyclic aromatic hydrocarbon, where the polycyclic aromatic hydrocarbon is acenaphthene, acenaphthylene, anthracene, benzo (a) anthracene, benzo(b)fluoranthene, benzo(k)fluoranthene, benzo (g,h,i)perylene, benzo (a)pyrene, benzo (e)pyrene, chrysene, dibenzo(a,h)anthracene, fluoranthene, fluorene, indeno(1,2,3-cd)pyrene, 2-methylnaphthalene, naphthalene, phenanthrene, perylene, or pyrene. Total hydrocarbon comprises ethane, ethylene, acetylene, propane, propylene, trans-2-butene, butane, 1-butene, 2-methylpropene, 2,2-dimethypropane, propyne, 1,3-butadiene, 2-methylpropane, 1-butyne, or cis-2-butene. The sample is collected in a bag or cartridge. Measuring is performed with gas chromatography, high performance liquid chromatography, gas chromatography-mass spectrometry, or Fourier transform infrared spectroscopy. The modal raw emission of the sample is measured at 1 Hz for carbon monoxide, oxide of nitrogen, carbon dioxide, and total hydrocarbons. The total hydrocarbon is measured using a flame ionization detector. The carbon monoxide is measured using a non-dispersive infrared detector. Carbon dioxide is measured using a chemiluminescent detector. The methane is measured according to SAE J1151. In comparing evaporative emission of butanol composition to evaporative emission of ethanol composition, the evaporative emission is measured at a temperature of at least about 70 degrees F. Evaporative emission is measured more than once during the heating. Evaporative emission is hydrocarbon, carbon monoxide, oxide of nitrogen, carbon dioxide, ozone, ozone precursor, total hydrocarbon, methane, benzene, or toluene. In comparing permeation emission of butanol composition to permeation emission of ethanol composition, the permeation emission is carbon monoxide, oxides of nitrogen, carbon dioxide, total hydrocarbons, methane, benzene, 1,3-butadiene, formaldehyde or acetaldehyde. The butanol is isobutanol. It is no greater than about 16% by volume in the composition. The butanol is about 12.5% by volume in the composition. EXAMPLE - No suitable example given.