one litre wonder ;) Posted October 16, 2004 Report Share Posted October 16, 2004 right ppl , what do u recon , i run a new 1ltr and only has moderate poke at about 2000 to 3000 do u recon that it might be a smidge quicker off the line by using this higher octane rated fuel or will the engine not be able to run on a higher grade fuel ??? and if i do use it do u recon that i should run the tank really low then put it in so not to dilute it with a lower grade fuel Quote Link to comment Share on other sites More sharing options...
payna Posted October 16, 2004 Report Share Posted October 16, 2004 well i use optimax all the time in my gti, perfomance wise i really wouldnt like to say. its gotta be better for the engine cos its gotta higher ron rating and so burns better. its a bit more expensive, but i dont think it uses as much so it probably works out the same as what you would spend 95 ron. also, it cleans the engine apparently.used it in my last car which was a 1.1, and it felt noticibly better!!!a few of the guys on here told me that it starts better from cold too, anyways!! it recommends to use 98 ron in the manual!!go for it Quote Link to comment Share on other sites More sharing options...
one litre wonder ;) Posted October 16, 2004 Author Report Share Posted October 16, 2004 cool , cheers mate thought that it might help , but just checkin incase it stuffed the engine Quote Link to comment Share on other sites More sharing options...
Dodgem Posted October 18, 2004 Report Share Posted October 18, 2004 Definitely Optimax! My engine is smoother ansd the loop is quicker. Smiles all round. Quote Link to comment Share on other sites More sharing options...
Arvid Posted October 18, 2004 Report Share Posted October 18, 2004 What octane does optimax have in the UK? Here in Holland we only have Shell `V-Power`, but that is a uprated version of 95 octane, while in Germany `V-Power` is 100 octane :-( Quote Link to comment Share on other sites More sharing options...
bossjohnc Posted October 18, 2004 Report Share Posted October 18, 2004 You may find it's actually exactly the same fuel, but regulations about the way it's transported may be different in different countries, meaning the fuel won't be labeled the same.For example, Shell can't call Optimax "Super" here, as they can't guarantee 97RON at the pump, although allegedly it's usually higher than 98.All AFAIK Quote Link to comment Share on other sites More sharing options...
tdwindustries Posted October 18, 2004 Report Share Posted October 18, 2004 yeah its been a hot topic before hasnt it....i think the general opinion is: Optimax should be 98 or above RON, BP Ultimate is 97 RON. Whether they do anything or not appears to be personal opinion. Sunday Times test says they do very little (even giving less power at lower RPM).Personally I find a higher RON makes my engine idle smoother, cant measure performance so not sure. Super/Optimax/Ultimate all seem to lower my fuel consumption.Sainsburys Super Unleaded seems fine. Quote Link to comment Share on other sites More sharing options...
Arvid Posted October 18, 2004 Report Share Posted October 18, 2004 I use Shell `V-Power` here in the bmw that i drive at the moment as a substitute for my Lupo. It responds very good as for fuel comsumption wich dropped `10-15`%. But it is said that older engines (the car is a 1991 car) respond far better than newer, more modern engines. Quote Link to comment Share on other sites More sharing options...
tdwindustries Posted October 18, 2004 Report Share Posted October 18, 2004 yeah according to VW etc the ECU adjusts itself to cope with a higher/lower RON so it shouldnt matter Quote Link to comment Share on other sites More sharing options...
DanGTI Posted October 24, 2004 Report Share Posted October 24, 2004 i think it really makes a difference. my parents have a 1.0 polo runabout that only really gets used at low revs using normal 95 and the injectors blocked up. ive given it a blast with high revs with injector cleaner, then a tank of optimax and its running sweet again.just convinced my girlfriend to use optimax to stop her car getting clogged up and cos it seems to make it run a bit smoother. Quote Link to comment Share on other sites More sharing options...
lunalupi Posted November 8, 2004 Report Share Posted November 8, 2004 so i'm running a old arosa (r reg) - is the general opinion that a higher rated fuel is better then?out of interest what prices are you all paying for ur fuel - mine is 82.9 - 86.9 for unleaded 95, and about 84.9 - 89.9 for 97 (i think :?) Quote Link to comment Share on other sites More sharing options...
Nicki Posted November 8, 2004 Report Share Posted November 8, 2004 I used standard 95 unleaded in my gti for the first few months of owning her, but about a month ago I moved over to optimax & the difference it makes is noticable. The car seems more willing to pull harder when accelerating & the improvement in mpg's I'm getting makes the extra expense negligable.Apparently, because higher octane fuel degenerates more quickly than normal fuel (something to do with it being less stable), the actual octane level could fluctuate from tank to tank...Edit: P.S I pay 89.9 for Optimax, Esso standard unleaded is 83.9 Quote Link to comment Share on other sites More sharing options...
tdwindustries Posted November 8, 2004 Report Share Posted November 8, 2004 i think it really makes a difference. my parents have a 1.0 polo runabout that only really gets used at low revs using normal 95 and the injectors blocked up. ive given it a blast with high revs with injector cleaner, then a tank of optimax and its running sweet again.and so it shouldit will help simpler/older engines more due to having no ECU Quote Link to comment Share on other sites More sharing options...
Bikerz Posted November 8, 2004 Report Share Posted November 8, 2004 Bikers do not use optimax as it very common cause of problems especialy not starting etc... So i would never use it incase i got into a routine of filling up with optimax and filled up my bike! Quote Link to comment Share on other sites More sharing options...
lunalupi Posted November 8, 2004 Report Share Posted November 8, 2004 just wondering - how many litres can you get in a lupo tank? ('rosa seems to be about 30litres - correct me if im wrong) i'm reading how many miles to a tank poeple r getting but dont know how many litres a tank is :? Quote Link to comment Share on other sites More sharing options...
bossjohnc Posted November 8, 2004 Report Share Posted November 8, 2004 It's 30 officially - possible to get closer to 40 though! Quote Link to comment Share on other sites More sharing options...
lunalupi Posted November 8, 2004 Report Share Posted November 8, 2004 cheers - no wonder lupo guys are getting 250+ from a tank (i think thats what they said) damn you all, i only get 200ish - then again that could be my driving lol style="vertical-align:middle" emoid=":P" border="0" alt="tongue.gif" /> Quote Link to comment Share on other sites More sharing options...
bossjohnc Posted November 8, 2004 Report Share Posted November 8, 2004 I think both tanks are the same... Quote Link to comment Share on other sites More sharing options...
lunalupi Posted November 9, 2004 Report Share Posted November 9, 2004 hmmmm strange - i just squeezed in 30 ltrs when i filled it up last - ah well probs already had sum in already. :? i fell sum investigating is needed......... Quote Link to comment Share on other sites More sharing options...
bossjohnc Posted November 9, 2004 Report Share Posted November 9, 2004 You need to press the magic button!! :wink: Quote Link to comment Share on other sites More sharing options...
lunalupi Posted November 9, 2004 Report Share Posted November 9, 2004 yeah wish i had one style="vertical-align:middle" emoid=";)" border="0" alt="wink.gif" /> Quote Link to comment Share on other sites More sharing options...
Crusoe Posted November 9, 2004 Report Share Posted November 9, 2004 only need to ask style="vertical-align:middle" emoid=";)" border="0" alt="wink.gif" /> sure i could find your magic button lol Quote Link to comment Share on other sites More sharing options...
bossjohnc Posted November 9, 2004 Report Share Posted November 9, 2004 No, seriously... Quote Link to comment Share on other sites More sharing options...
Crusoe Posted November 9, 2004 Report Share Posted November 9, 2004 I was being serious, it's just inside the flap style="vertical-align:middle" emoid=";)" border="0" alt="wink.gif" /> Quote Link to comment Share on other sites More sharing options...
lunalupi Posted November 9, 2004 Report Share Posted November 9, 2004 cheers bossjohnc - never knew that style="vertical-align:middle" emoid=":)" border="0" alt="smile.gif" /> dont think im gonna try it though - dont want to risk blowin it up, i like my 'rosa in one piece!hmmm *reads a bit more* so can u get 6 speed gear boxes? i suppose there's no chance of puttin one in a 'rosa - or is that just wishful thinking? style="vertical-align:middle" emoid=":lol:" border="0" alt="laugh.gif" /> Quote Link to comment Share on other sites More sharing options...
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