L John
Senior Member
- Joined
- Nov 24, 2013
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- Your Mercedes
- W204 C350 Petrol Elegance
Virtually every motoring organisation worldwide that has run side by side tests has found virtually no benefit to running 98 RON fuel as opposed to 95vRON fuel.
Is this on engines designed for 95 or 98 RON?
If the OP's car was designed for 98 and he's been using 95 before changing to the correct fuel then I take back what I said.
My understanding was the thread was about using 98 when 95 was the supposed to be the regular fuel.