jymbee
Platinum Member
When I bought a new Stihl trimmer (130 FS) and chainsaw (Husky 576 XP Pro) a while ago I switched from the 87 octane gas I've always used in my older trimmers/saws to 89 octane. Since then I've talked to some folks who say to use premium gas and ideally ethanol free premium. I switched to 89 octane now.
But my older gear is at least 10 years old and still runs well today-- no issues that would seem to have anything to do with the fuel.
My question is do newer engines somehow benefit more from premium gas than older models did, or is the advice to go premium just a matter of eliminating as many potential issues as possible?
For example, if theoretically two identical chain saws ran over an extended period of time under the exactly the same conditions-- one using regular and other high test fuel, would there likely be a noticeable difference in maintenance?
But my older gear is at least 10 years old and still runs well today-- no issues that would seem to have anything to do with the fuel.
My question is do newer engines somehow benefit more from premium gas than older models did, or is the advice to go premium just a matter of eliminating as many potential issues as possible?
For example, if theoretically two identical chain saws ran over an extended period of time under the exactly the same conditions-- one using regular and other high test fuel, would there likely be a noticeable difference in maintenance?