I ran high test for a little while and it's simply not worth the hassle. Run good oil and keep the saw tuned properly and carbon shouldn't be an issue.
Good info thanks.
I ran high test for a little while and it's simply not worth the hassle. Run good oil and keep the saw tuned properly and carbon shouldn't be an issue.
The engine will run a little cooler with av-gas. It won't hurt anything.I ran it in my hotsaws,motorcycles,snowmobiles,cars... Generally you want to take advantage of the high octane and raise the compression a bit or advance the timing in most engines(If you know what you're doing),but the timing on most saws is fixed and not easily adjusted,and is fatal if you go too far.
Raising compression ratio is usually not too hard,there are well known guidelines you can be safe at,but then you may not be able to run normal gas again if you go too far.
So running the stuff is fine even if you don't do anything to the motor,it's good stuff,you may have to re-adjust your carb mixture of course.
If you suspect the fuel you buy at the gas station has alcohol in it,then all you need to do is use synthetic mix-oil to be safe,petroleum oil will not mix with alcohol,hence the mysterious piston seizures. Try pouring some straight alcohol into a bottle and add some petroleum oil,you can shake it all you want,it won't mix. I ran an 084 on a 50% alcohol/25% nitro mix,and used Amsoil mix oil no problems. Actually that ammount of alcohol in a motor has a profound cooling affect,the engine ran very cold compared to gas.
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