IceMan Posted October 18, 2002 Share Posted October 18, 2002 my mate (owns a Skyline) has indicated that using regular unleaded will damage and destroy my engine and that I should be using at least super unleaded and ideally Optimax. I drive a basic un-upgraded Japanese Twin Turbo and the other day I HAD to use regular unleaded as there were no super unleaded stations nearby and now it's worrying me a bit... Anyone give any realistic (with proof if possible) stories of whether it's good/bad/what it means/does to use lower octane fuel? Also what does "pinking" or "knocking" sound like for my reference? Thanx, Ice Quote Link to comment Share on other sites More sharing options...
Alex Posted October 18, 2002 Share Posted October 18, 2002 You can use 95 ron but i would advise that you stay off the throttle. Too much boost for too long would be bad. Quote Link to comment Share on other sites More sharing options...
Adam_SG Posted October 18, 2002 Share Posted October 18, 2002 Do u think that would apply to UK to, or are they adapted to 95ron use? Quote Link to comment Share on other sites More sharing options...
b_have Posted October 18, 2002 Share Posted October 18, 2002 tts NEED >97ron at above 1.25 bar, mine is det free at 1.65 bar using 103 ron, fmic & erl meth/water inj Quote Link to comment Share on other sites More sharing options...
adi Posted October 18, 2002 Share Posted October 18, 2002 I ran my stock 2.5TT (virtually the same engine) for ages on 95 ron, did no harm whatsoever. With higher boost i now use super. Dont panic, i dont think you did any harm. Quote Link to comment Share on other sites More sharing options...
randy Posted October 19, 2002 Share Posted October 19, 2002 I used to run low octane before but that was due to non-availability of higher octane. Be sure not to wind up the boost cause it will definately retard on the timing due to knock. So my suggestion is use the best fuel you can buy esp: Supra!! Fill up with 97+ octane also some injector cleaner and run for about 20 miles after that re-set your ECU for 5min so your timing and fuel map is re-programmed to the new fuel. Believe me you car will feel much faster/responsive with the new setting. Quote Link to comment Share on other sites More sharing options...
GavinL Posted October 19, 2002 Share Posted October 19, 2002 Originally posted by b'have tts NEED >97ron at above 1.25 bar, mine is det free at 1.65 bar using 103 ron, fmic & erl meth/water inj Is this Charlie NB by any chance ? Quote Link to comment Share on other sites More sharing options...
suprarob Posted October 19, 2002 Share Posted October 19, 2002 uk tt,s are set up to run on the crap petrol we get in this countryi.e. 95 ron fuel Quote Link to comment Share on other sites More sharing options...
Syed Shah Posted October 19, 2002 Share Posted October 19, 2002 Originally posted by suprarob uk tt,s are set up to run on the crap petrol we get in this countryi.e. 95 ron fuel But will run better on a higher octane fuel. Quote Link to comment Share on other sites More sharing options...
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