My GTS-T is mapped for Shell V power fuel (99 octane) however, I am having a real problem getting it (nearest garage selling it is 25 miles away). The best I can get locally is Esso Super Unleaded 97 RON fuel. I saw the following Add on eBay for Octane booster -
More ron is fine, although if you don't get it mapped you won't necessarily see any more power (will be safe though) - the only stuff I know commonly available is the 102 (?) stuff for an absolute fortune.
Octane booster may help, but I've heard mixed reports about it (nothing concrete though) - I wouldn't risk it myself. 'Normally' people use it if they can't get correct ron, and then they drive off boost.
Best thing would be to get it remapped for 97 ron (sorry if that's obvious)
there was a thread on the ron rating of v-power im sure its 97.....if you use 97 ron you can boot it on short bursts, just dont hold it top end wise or yr surely get det..
Mark I would give Abbey a call and get their advice, after all they mapped her and should be able to professionally advise you as whats best to do in your situation.
5th gear did some interesting tests on octane boosters last week. They tested 4 and all of them lost 2% in power over the standard fuel!!! Even though they tested it on a crappy rover K series I would think twice before spending my hard earned cash on any... probably cheaper to drive to the V power station anyway!
Sorry for bring it back to live but I just had a chance to fill on one of the locals Shell stations and my octane readings on Pb95 are at 78 and in USA I had 100 with V-Power Pb93. I wonder if its bad fuel only on this station or is it everywhere. Price of petrol is killing me.
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