Guest Phil Stephens Posted May 26, 2006 Share Posted May 26, 2006 Hi there, i would guess that most people may know this but if like me who didnt, here goes... I recently bought a Jap spec TT 6spd Supra, i got it in the mainland and brought it over to Northern Ireland where i live. I had been running it with Ultimate super unleaded petrol (octane 97). Things were fine only after a few days it seemed to lose the 'big kick' when the 2nd turbo kicked in. I thought it was losing boost so i checked pipes etc. Everything looked ok. I got the car checked out and found it was pinking- 'self destruct' mode was mentioned. So, the outcome is this- the super unleaded fuel in Northern Ireland is balls- for a Jap spec Supra anyway. It should be running on 98 at the very least to 100 octane fuel. Once i added the 'high octane booster' additive to the fuel the car stopped pinking and began to run as normal. It means i have to add this forever now but i dont mind at all. The boost is set to 1.1 bar and the 'big kick' is back, things are wonderful again. Thought i might mention this to anyone who's interested. [COOL][/COOL] Link to comment Share on other sites More sharing options...
AlanM Posted May 26, 2006 Share Posted May 26, 2006 If it is any consolation Ultimate is as bad here (North of Scotland), but Optimax is available and worth the 40 mile round trip for the difference Link to comment Share on other sites More sharing options...
Guest Phil Stephens Posted May 26, 2006 Share Posted May 26, 2006 I heard about the Optimax, we dont even have it over here. I guess i'll have to stick to the additive. Link to comment Share on other sites More sharing options...
Guest Flat4_ire Posted May 26, 2006 Share Posted May 26, 2006 I heard about the Optimax, we dont even have it over here. I guess i'll have to stick to the additive. mine ran absolutely fine on 95ron which is all we have in the Rep Of Ireland Link to comment Share on other sites More sharing options...
Guest Phil Stephens Posted May 26, 2006 Share Posted May 26, 2006 I was told i could get the computer re-programmed to run on 95 or 97 octane, but i think it was expensive. I was too glad to have the car back to normal so i didnt enquire about much further. Link to comment Share on other sites More sharing options...
Chris Wilson Posted May 26, 2006 Share Posted May 26, 2006 Toluene is your friend then. Link to comment Share on other sites More sharing options...
Thorin Posted May 26, 2006 Share Posted May 26, 2006 Could it be dodgy plugs? I find it hard to believe that that would have problems running on 97, as pointed out it should probably still run ok on 95 but I wouldn't. Link to comment Share on other sites More sharing options...
Guest Phil Stephens Posted May 26, 2006 Share Posted May 26, 2006 The plugs were the first things we checked- they were all brand spanking new. Link to comment Share on other sites More sharing options...
Thorin Posted May 26, 2006 Share Posted May 26, 2006 Correct gap? Coil packs ok? I still think it's probably some other issue rather than fuel. Link to comment Share on other sites More sharing options...
Guest Phil Stephens Posted May 31, 2006 Share Posted May 31, 2006 Thanks everyone for all your comments, i decided to drive it for a few days- see how things went, since the fuel additive has been added it hasnt missed a beat, so hopefully thats all it was. I've a picture of the car on my computer but i'm still trying to figure out how to get it on the forum pages. Link to comment Share on other sites More sharing options...
tbourner Posted May 31, 2006 Share Posted May 31, 2006 Reset the ECU after refilling the tank? Link to comment Share on other sites More sharing options...
Guest Phil Stephens Posted May 31, 2006 Share Posted May 31, 2006 When i drove it away from the garage that checked the tuning of it, they were 100% happy with it once the additive was added. As far as i know the ecu wasnt reset, i know the guy who owns the garage and he seems very switched on, so i'm pretty confident it's sorted now. Link to comment Share on other sites More sharing options...
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