Re: Gas/oil mix ratio
I talked to a small engine repairman this morning about this very subject. He sells synthetics including Opti, and said he'd never run one with less than a 32-1. His logic: Tearing down or throwing away an engine cost a lot more than changing a spark plug more often, or cleaning out a muffler.
I asked because in checking out the Tanaka 32cc, it said to run it at 50-1, including break in. He said they had a cat in the muffler, and to get it approved for emissions, they had to spec it at 50-1.