Join Date: Jul 2006
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Well, I've been reading a bit about this in 'EVO' magazine, and there are performance gains to be made, but only really for the highly-strung engines. There are of course the latest FSI engines from VW/Audi which are set-up to run on higher octane fuel (and will give less power/economy when they aren't). I have to agree with most opinions on this, that you may
get a few more mpg, but the cost won't justify it. I have done similar tests on my Scorpio 24v, and found the best way to get the benefits, is to fill up with the more expensive fuel once in a blue moon, just before heading off on a long journey, that way, any harmful deposits are blown out the rear end (the car's - not mine!).
This job should never be complete - the day I think I've done it all, is the day I resign.
Currently in VelSatisfied's garage:
2005 FIAT Ducato 2.8JTD LWB Gran Volume, 2000 Kawasaki ZZR 1100 D7 'fullpower' in black + full GIVI & KAPPA luggage, 2007 MB R-Class 320 CDi Sport LWB uprated by Brabus to 300Bhp don't know if there's a 155mph limiter - will be fun finding out! 2004 Mercedes Vaneo 1.7 CDi Ambiente 7-seater