While it is often convenient to talk about a recessive allele or a dominant trait, dominance is not inherent to either an allele or its phenotype. Dominance is a relationship between two alleles of a gene and their associated phenotypes.
January 6th, 2012, 12:12 PM. Re: What octane gas is best to use for a two stroke outboard motor. If you're looking for solvents in the higher octane fuels to clean out the fuel system, the ethanol itself is a great solvent to loosen up crud in the fuel system.
Premium gasoline does not pass partially burned through an engine designed to run on lower octane fuels. It burns as completely as a mid-range-octane or low-octane gasoline. In fact, 93 octane will perform just as well as lower octane; it just isn't necessary to spend the money on it.