73 Pa. Stat. § 2141
The following words and phrases when used in this act shall have the meanings given to them in this section unless the context clearly indicates otherwise:
"Co-solvent." An alcohol or any other chemical with higher molecular weight than methanol or ethanol which is blended with either or both to prevent phase separation in gasoline.
"Ethanol." Ethyl alcohol, a flammable liquid having the formula C2H5CH, used or sold for the purpose of blending or mixing with gasoline for use in motor vehicles, boats, motorboats or watercraft, and commonly or commercially known or sold as ethanol or ethyl alcohol.
"Gasoline." Any liquid prepared, advertised, offered for sale, sold for use as or used for the generation of power for the propulsion of motor vehicles, boats, motorboats or watercraft, including any product obtained by blending together any one or more products of petroleum with or without other products, if the resultant product is capable of the same use.
"Gasoline additives." Methanol, ethanol or co-solvent in concentrations above 1% by volume.
"Manufacturer." A person, firm or corporation maintaining a place of business where gasoline is manufactured, refined or blended.
"Methanol." Methyl alcohol, a flammable liquid having the formula CH3OH, used or sold for the purpose of blending or mixing with gasoline for use in motor vehicles, boats, motorboats or watercraft, and commonly or commercially known or sold as methanol or methyl alcohol.
"Retail service station dealer." A person, firm or corporation maintaining a place of business where gasoline is sold and delivered into the tanks of motor vehicles, boats, motorboats or watercraft.
73 P.S. § 2141