Premium or regular for quad / chainsaw

[woodlandfarms]

I know low ethanol but what about grade? Looking for advice on small engines.

 

[Fixemall]

Check owners manual, a lot of OPE recommends the use of 89 and higher octane. Around here only non-ethanol fuel we can get is 91 octane, so it is what we run in chainsaws and OPE.

 

[David_Kb7uns]

I have been buying Premium here because I can get it with no ethanol. Less problems and runs in saw a whole lot better and does not run as hot.

David Kb7uns

 

[westbrooklawn]

I run a lot of 2 cycle equipment, and always use 93 octane and a high quality 2 cycle oil... it just runs better and I have less problems. For all other 4 stroke engines I just use regular gas.

 

[Scooby074]

i run the highest octane available.

 

[greasemonkeyok]

Since my chainsaw manual says use premium (91), I use that for all 2 cycle with a good synthetic 2 cycle oil. In 4 cycle engines, like lawn mowers, power washer, etc., 91 octane is a wast of money but not harmful.

 

[mjonesnh]

I am lucky to have two stations that have non-ethanol gas in 87,89, and 93 octane within 12 miles of my house. All 2 stroke engines and 4 stroke air cooled engines get 89 octane (Stihl says to use min. 89 octane). All my vehicles get 87 except 95 Dodge ram gets 93 because it gets 2 miles per gallon better mileage vs. 87.

 

[easygo]

All my small engines get the highest grade gas I can find. Usually 89 octane. I mix in synthetic 2 stroke oil for the chainsaw and the weed whacker. I forgot the exact explanation, but the higher grade fuel actually keeps the engine running cooler.

 

[brucew44guns]

I agree on the higher octane, and have used Still Ultra synthetic oil for mix. All my Stihl stuff uses that one oil and fuel, virtually no problems at all in years.

 

[Soundguy]

higher the octane.. harder it is to fire off the fuel.

I'd use low octane on a low rpm engine that did not have high compression.. or was not experiencing spark knock ( pinging ).. etc.

hgher than needed octane does nothing for ya..