Re: Boat gas/oil mix in a chain saw ??
Here's a quote from "Marlowe" in another forum that sums this up pretty well:
"Any oil is better than no oil, but the right oil works better than just any oil. Through the years engineers have learned what helps and what doesn't help so much. An air cooled engine runs at different temperatures than a water cooled one, that's why they throw that W in the TCW designation. W for water cooled combustion chamber temperatures. The same oil in an air cooled engine is better than nothing but it breaks down at the higher temperatures resulting in accelerated wear. Even in the two stroke outboards today we have oil specifically formulated for the application, such as oil for injected engines as compared to oil for carbureted engines. Use the wrong stuff and I can vouch for the fact that it shortens the life of the engine sometimes resulting in catastrophic failure. It's not just marketing hype. Compared to the engine, oil is fairly cheap. I'd recommend getting the right stuff."