Originally Posted By: boraticus
Originally Posted By: dlundblad
Originally Posted By: BrocLuno
Most important thing is heat. Synthetics can handle higher heat. Less stuck rings, etc.
No need to run high octane unless owners manual calls for it. Or unless you have turned up the timing
My main reason is that it's E0.
2-3 gallons a year isn't going to break the bank.
It's not a matter of cost. It's a matter of most two cycle engines not designed to run on high octane fuel. Some engine manuals actually warn against using high octane fuel.
I've never used synthetic two cycle oil. I run conventional TC3 in air cooled engines and TCW3 in liquid cooled engines and I generally run more oil than recommended depending on which type of engine. Air cooled engines get 32-40:1 oil mix. My liquid cooled outboards are rated at 100:1 but I prefer to run about 70:1. No issues ever with either.
I agree regarding the high octane, especially in older 2 strokes. The problem lies in this - try to find E0 that isn't premium. Rarer than a hen's tooth in MN...