Fuel for ea81t

[Ross]

am running the ea81t on 91 octane (RON) gas. seems to be knocking going up hills, just thought i'd check to see what fuel others use before checking timing/plugs etc. as far as i know, the engine is stock standard.

[carfreak85]

Subaru says in the owner's manual to use 91 or higher, so thats what I use even though I'm tempted to use 87 when I don't have a lot of cash in my pocket. Better safe than sorry!

[BobBrumby]

haha our premium is 98 octain in some places and like 94 octain standard i think

[Ross]

haha our premium is 98 octain in some places and like 94 octain standard i think

is that RON?

[Turbone]

My old EA81T ran fine on regular, I think thats 89?

Make sure you have the timing set accurately. Might check the gap on the sparkplugs also.

[BobBrumby]

i duno if its "RON" but it says 98 octain on the bp super dooper permuim in aus. yeh i duno what units octain is measured in, but for y'all love of imperial measurements over there and it being metric here, maybe this screwed the comparison.

[naru]

am running the ea81t on 91 octane (RON) gas. seems to be knocking going up hills, just thought i'd check to see what fuel others use before checking timing/plugs etc. as far as i know, the engine is stock standard.

 

My owners manual says to use 90 RON.

In my area gasoline is rated as (RON+MON)/2

I think 90 RON is equivilent to about 87-88 (R+M)/2 for most gasolines.

My ea-81t pings on 87 R+M/2,isn`t bad on 89,is better on 91 and I haven`t tried enough 94 to be sure.

I use 89 mostly.