Got 2 new saws--Stihl MS210 and MS310. I dumped a 2.5 gal oil bottle of Stihl oil into a gas can told my son to go get 2.5 gallons of gas. He got regular. Our regular is 87 octane. Then I read the back of the bottle that stated use 89 octane. Then I read the manual and it stated to use 89 octane. Will the 87 octane hurt the saws? Should I go get 2.5 gallons of 93 octane and mix up more gas and mix the two cans in a 5 gallon can? I'm not sure I am going to be able to use up that much 50:1 gas in the next couple of months.
Can I use this in my boat--1990 25hp Merc (it takes 50:1 mix). But the Stihl oil is for "air cooled" engines and the boat is water cooled. Seems I read somewhere you can use oil designated for air cooled engines in anything, but you shouldn't use oil designated for liquid cooled engines in air cooled engines.
Can I use this in my boat--1990 25hp Merc (it takes 50:1 mix). But the Stihl oil is for "air cooled" engines and the boat is water cooled. Seems I read somewhere you can use oil designated for air cooled engines in anything, but you shouldn't use oil designated for liquid cooled engines in air cooled engines.