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Fuel for ea81t


Ross
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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.

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