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      02-04-2010, 05:22 PM   #34
beemerbird
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Drives: Merc diesel
Join Date: Oct 2007
Location: Yorkshire

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Quote:
Originally Posted by YvesD View Post
The higher the performance/tech spec of the engine the greater the benefit. Turbo engines and tuned ones in particular love V Power.
Nail on head.

That is why in some ways I wonder whether my engine seriously needs the 98 RON when you look at the state of tune of a stock M3 which has rather impressive bhp/litre. My engine in comparison is not in a high state of tune, but 98 RON is what it gets.