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Discussion Starter · #1 ·
Ok our MKIV petrol cars are formulated to run on 95 ron(as far as im aware). Who here uses 99 ron or an equivilent? Any gains IYO?
 

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Discussion Starter · #5 ·
With the burn ratio being differnet though i thought it could affect the internal components?
 

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Discussion Starter · #7 ·
I thought it had some thing to do with timing and or the spark plugs due to the burn being at a different time.
 
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