Chingy Posted February 11, 2008 Share Posted February 11, 2008 V-Power for me Quote Link to comment Share on other sites More sharing options...
RedM Posted February 11, 2008 Share Posted February 11, 2008 I used to use V-Power too wherever possible. Occasionally I'd stick some Tesco 99 avec Flake in but it never felt as good. I also found it rather ironic that, one week after selling the Supe, I got a package from Shell upgrading me from the Shell Drivers Club to the V-Power Club because I used to buy rather a lot of it. Quote Link to comment Share on other sites More sharing options...
adam bell Posted February 11, 2008 Share Posted February 11, 2008 i have never had aproblem with normal unleaded on mine i am going on a dyno day soon i will have to see what its like on there Quote Link to comment Share on other sites More sharing options...
Guest raji Posted February 12, 2008 Share Posted February 12, 2008 In mine when I accelerate It goes smoothly up too about 5k then it seams too dump more fuel in the engine gets louder and it pushes me in my seat more. Is it over fuelling??? surely thats the second turbo kicking in at around 5k that does that ?! ...normally causes a smilling sensation across one's face... Quote Link to comment Share on other sites More sharing options...
Gaz6002 Posted February 12, 2008 Share Posted February 12, 2008 surely thats the second turbo kicking in at around 5k that does that ?! ...normally causes a smilling sensation across one's face... If your second turbo is coming in at 5k rpm, you've got a problem. Quote Link to comment Share on other sites More sharing options...
ivan Posted February 12, 2008 Share Posted February 12, 2008 Tesco 99 all the way for me. It's 105.9 here as opposed to over 110 for V-Power. Quote Link to comment Share on other sites More sharing options...
dr_blackman Posted February 12, 2008 Share Posted February 12, 2008 There's a big difference from using standard unleaded to using Vpower in my na, Vpower just makes the car feel smoother and more responsive. But with petrol prices round here she's been on normal bp lately. Quote Link to comment Share on other sites More sharing options...
Thorin Posted February 12, 2008 Share Posted February 12, 2008 Some dodgy info posted in this thread. Forget the "jap cars are designed to use higher octane" rubbish... In an NA - Normal unleaded is perfectly fine, you might notice a slight performance increase using Super, but it's certainly not needed. In a TT (UK, Jap, Euro, whatever) - I wouldn't use anything less than Super unleaded (or V-Power, or Ultimate, or Tesco 99, etc. etc.). It might be ok on normal unleaded but I certainly wouldn't want to give it much boost. All of these Octane boosters you get in little bottles are pointless snake oil, but if they make you feel better go for it The only useful "octane booster" is Toluene as already mentioned. 10% mix is safe. Quote Link to comment Share on other sites More sharing options...
keancy Posted February 12, 2008 Author Share Posted February 12, 2008 So Tesco 99 isn't just cheap rubbish then?? Poeple can recommend it I guess? May try some. Quote Link to comment Share on other sites More sharing options...
Thorin Posted February 12, 2008 Share Posted February 12, 2008 So Tesco 99 isn't just cheap rubbish then?? Poeple can recommend it I guess? May try some. It has to meet the same stringent safety and quality requirements as every other fuel, it's very good by all accounts, I just don't know of anywhere near me that sells it. Quote Link to comment Share on other sites More sharing options...
adam bell Posted February 12, 2008 Share Posted February 12, 2008 Some dodgy info posted in this thread. Forget the "jap cars are designed to use higher octane" rubbish... In an NA - Normal unleaded is perfectly fine, you might notice a slight performance increase using Super, but it's certainly not needed. In a TT (UK, Jap, Euro, whatever) - I wouldn't use anything less than Super unleaded (or V-Power, or Ultimate, or Tesco 99, etc. etc.). It might be ok on normal unleaded but I certainly wouldn't want to give it much boost. All of these Octane boosters you get in little bottles are pointless snake oil, but if they make you feel better go for it The only useful "octane booster" is Toluene as already mentioned. 10% mix is safe. so when uk cars were built could you buy super unleaded. just seems wierd that the owners manual says use 95 ron in it and i am sure people used to drive them quite hard then. Quote Link to comment Share on other sites More sharing options...
turbonut Posted February 12, 2008 Share Posted February 12, 2008 There's a big difference from using standard unleaded to using Vpower in my na, Vpower just makes the car feel smoother and more responsive. But with petrol prices round here she's been on normal bp lately. Agreed For the amount of mileage that most of us do in our supra's, even we NA's a few pence more a litre doesnt make a massive hole in the pocket and personally I'd rather put the best quality fuel in my supe just as I'd only put the best quality mods/parts on/in it. Vpower is supposed to clean and prolong the longevity of the engine which is all good as most of our supra's are getting on a bit now anyway Lx Quote Link to comment Share on other sites More sharing options...
keancy Posted February 12, 2008 Author Share Posted February 12, 2008 It has to meet the same stringent safety and quality requirements as every other fuel, it's very good by all accounts, I just don't know of anywhere near me that sells it. Nor me, just found a list of Petrol Station that sells Tesco 99, not a single one in Cornwall though,lol Quote Link to comment Share on other sites More sharing options...
Scott Posted February 12, 2008 Share Posted February 12, 2008 I'd say in N/A's unleaded is fine but as said previously VPower would be a little smoother etc but that should be the same in any car. As far as tubby's go Uk's are mapped to 95 ron so they are fine but J-Specs are mapped to 100ron (i think). Cutting it all the way down to 95 would give a higher risk of Det at higher revs would it not? For the sake of an extra £4 a tank i'll stick with V-Power. Scott =op Quote Link to comment Share on other sites More sharing options...
keancy Posted February 12, 2008 Author Share Posted February 12, 2008 OK so long story cut short. If I always fill with Super Unleaded or V-power but the occasional 20-30 quits of unleaded when I get cought short it will not kill my engine?? Quote Link to comment Share on other sites More sharing options...
Scott Posted February 12, 2008 Share Posted February 12, 2008 As long as you don't drive it hard it should be fine. I've been stuck and put regular in both the MR2 and the Supra. Drove them very carefully though. Scott =op Quote Link to comment Share on other sites More sharing options...
Thorin Posted February 12, 2008 Share Posted February 12, 2008 Super Unleaded has been available since the late 80's as far as I'm aware. Are people aware that Japan also has different fuel grades just like we do? Many people seem eager to say "it's a Japanese car, therefore it needs super unleaded!!!1!". I stick by my comments in the previous post. Quote Link to comment Share on other sites More sharing options...
SMiFFAD Posted February 12, 2008 Share Posted February 12, 2008 Super Unleaded has been available since the late 80's as far as I'm aware. Are people aware that Japan also has different fuel grades just like we do? Many people seem eager to say "it's a Japanese car, therefore it needs super unleaded!!!1!". I stick by my comments in the previous post. From experience, all imported SX's are mapped as standard to higher ron fuel - as thats the "norm" in japan (they run 1 bar of boost as standard and have different degree's of timing - something the uk ones cant do without SU). The norm over here is 95, which is what the UK ones are mapped to. So unless toyota either chose to ignore this difference in fuel, or fudged the maps in some way ill stick by my comments that jap cars should be run on higher ron fuel. At the end of the day, most of us dont drive like grannys, so should be using SU to be on the safe side, certainly so in the case of TT's. NA's youll get away with 95ron, but as has been said by a few owners previously - they run better on SU - possibly as its closer to what they were mapped for. Quote Link to comment Share on other sites More sharing options...
Sharpie Posted February 12, 2008 Share Posted February 12, 2008 so when uk cars were built could you buy super unleaded. just seems wierd that the owners manual says use 95 ron in it and i am sure people used to drive them quite hard then. 95 or higher....is what it says...for a stock UK car, running stock boost You are not running stock boost with a double decat..... Quote Link to comment Share on other sites More sharing options...
Thorin Posted February 12, 2008 Share Posted February 12, 2008 So unless toyota either chose to ignore this difference in fuel, or fudged the maps in some way ill stick by my comments that jap cars should be run on higher ron fuel. FFS. So your basic crappy Toyota Aygo would need to run 100RON fuel if it's an import would it? That's what I'm getting at here, people just jump in and say "Jap Car = Must use SUL" regardless. High performance turbo cars really should run on SUL yes, and I personally wouldn't use anything less. This doesn't matter be it an official UK car or a Jap import. But equally they're not going to explode when pulling out of the petrol station if you've filled up with normal unleaded. There has to be some leeway due to variances in fuel. Quote Link to comment Share on other sites More sharing options...
SMiFFAD Posted February 12, 2008 Share Posted February 12, 2008 FFS. So your basic crappy Toyota Aygo would need to run 100RON fuel if it's an import would it? That's what I'm getting at here, people just jump in and say "Jap Car = Must use SUL" regardless. My comments only covered performance cars, i didnt think many Aygo owners would read it and take note, ill rememebr to be more specific in future. Quote Link to comment Share on other sites More sharing options...
adam bell Posted February 12, 2008 Share Posted February 12, 2008 95 or higher....is what it says...for a stock UK car, running stock boost You are not running stock boost with a double decat..... thats the answer i have been looking for will have to change over cheers Quote Link to comment Share on other sites More sharing options...
Scott Posted February 12, 2008 Share Posted February 12, 2008 My comments only covered performance cars, i didnt think many Aygo owners would read it and take note, ill rememebr to be more specific in future. Can't remember exactly what show i was watching but i think it may have been Fifth Gear. They tested all manor of cars using regular unleaded and then using V-Power. It did make a small difference to GTi Golfs etc but no difference at all to smaller cars. The biggest difference was on an STi Impreza. Think it ended up with almost 30bhp more. Surely its only performance cars that have a high risk of detonation due to low octane fuel? Scott =op Quote Link to comment Share on other sites More sharing options...
razza Posted February 12, 2008 Share Posted February 12, 2008 BP ultimate most of the time, although filled up for the first time in a few months and got the shock of my life, HOW BLOODY EXPENSIVE:blink: bloody tax man:taped: Quote Link to comment Share on other sites More sharing options...
Scott Posted February 12, 2008 Share Posted February 12, 2008 BP ultimate most of the time, although filled up for the first time in a few months and got the shock of my life, HOW BLOODY EXPENSIVE:blink: bloody tax man:taped: I used that stuff once when i was stuck on a motorway and i felt the car was a little sluggish and spluttery. Was greatful to get the v-power back in. I have even used 95 ron before and it wasn't as bad as the bp ultimate. Maybe i got a bad batch lol. Scott =op Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.