High octane petrol in a Williams?

[GabrielKnight]

Is it worth putting in the 'performance' petrol that costs 5-10p more?

I think its something to do with octane levels? I was told its only really of use in newer cars, but if it makes any difference to the performance / preservation of my car I'd use it.

[2 live]

no need really mate. unless of course, your cars been mapped for it. which if its std it hasnt lol.

save yourself a bit of coin, 97 ron good to go.

[vkosho]

I ran mine on v-power for a bit and it didn't run any better. When i switched back i actualy noticed the improvement and it seemed to run smoother.

Using injector cleaner helped boost the performance a bit though.

[GabrielKnight]

Funny you should mention that!

http://www.williamsclio.co.uk/forum/viewtopic.php?t=35913

[vkosho]

different shizzle tho

[raviedavie]

only had mine a few weeks and never used anything other than V power but thats cos all my M3 takes so its habit now :lol:

[Tommo]

Only ever use V power in mine

[Wolfie]

I always was lead to believe that the higher octane level is only a safeguard against detonation for high compression engines such as tuned, turboed or when using nitrous injection.

[schakal]

here is a nice thread about them performance fuels .

http://www.rtoc.org/boards/showthread.php?t=7346

[Slam]

it actually made a difference in my old 1 point no chance clio.
not much... but it wos slightly more responsive. Hafta wait till tomorow to try it out in a valver.