What fuel should I use?

[hwassall]

I''m looking into buying a Griff shortly and am wondering about which fuel to use. I''m sure this has been asked a hundred times but does everyone use Super all the time? Just asking as am concerned about the availability of Super, I don''t see it in all garages. Howard

[apache]

Shell have some new stuff called optoplex or something, it is supposed to be a higher octane rating from superu, must say the Griff loved the stuff. In answer to your question, try it and see, mine runs fine on super or normal unleaded but obviously not all are the same and you may get pinking

[Stu H]

Shell's new fuel is called "Optimax" and is being introduced to replace Shell Super Unleaded. Some Shell garages already have it, and the rest are getting it in the next couple of weeks. Shell won't officially quote the Octane rating except to say it's "in excess of 98RON". Actually when pushed they say about 98.6RON so highest octance rating fuel out there. I know a few people who've tried it already and they say it IS noticeable once your ECU has got used to it, and learnt the new RON (if you have an ECU that does that). Best news of all is that apparently it costs no more that the old superunleaded. ---- regds Stu

[Captain Crimson]

Follow this link for the full story: http://www.shell.co.uk/uk-en/directory/0,4010,44845,00.html

[500 GRF]

What is the story with using different fuels? Apache says that he has used normal unleaded. Can you mix this with Super OK? It seems its about a 50/50 split with those garages that have Super and those that don't so it would be useful to know if I could top up with unleaded now and again.

[dan]

I was told that you don't do any damage if you use unleaded (95) occasionaly, however you will probably notice that the engine pinks under acceleration. It is possible to get the engine tuned to 95 ron which will eliminate the pinking problem, but no one seems willing to confirm whether or not this will cause damage long term.

[shpub]

quote:What is the story with using different fuels? Apache says that he has used normal unleaded. Can you mix this with Super OK? It seems its about a 50/50 split with those garages that have Super and those that don't so it would be useful to know if I could top up with unleaded now and again.

It is the bibles and in the unleaded FAQ on my website. Steve www.tvrbooks.co.uk

[ATG]

Wahey. Congrats to Shell and their octopus. I've been having real difficulty finding super unleaded in north London. Was considering getting the car retuned for 95Ron at service next week. p.s. My girlfriend tells me "Ron" was a Norse God of high speed driving under appropriate conditions. p.p.s I don't believe her. What does Ron stand for?

[Factory Hound]

quote:What does Ron stand for?

R esearch O ctane N umber

[ATG]

Thanks

[RichB]

quote: R esearch O ctane N umber

Factory Hound, take a cigar for RON, later'ron... boom boom.

[caro]

I liked the Norse God explanation better - reminds me of the line from The Blues Brothers "Our Lady of Blessed Acceleration don't fail me now..."

[mel]

Just filled up with the new optimax @ 78.9p, bird at counter knew FA about it but did have brochure to give me and was v proud of her new Farrari t shirt which I must say did emphasise her tits nicely anyway its only a 100yds away so will post if I notice any difference later.

[GasBlaster]

I've used Super 92, 97 and 98. Can't say I noticed any difference.

[saturn 5]

I have never put super unleaded in mine. It has never pinked however i cant say if the erfprmance has suffered, but it seems ok to me.

[apache]

saturn 5...you bin drinking with Campbell ?

[mel]

Tried out the optimax a bit more last night can't really say much of a noticable difference Will persevere for a few tanks full to get it all flushed through and try a track spin me thinks.

[Saturn 5]

No i havent been drinking, i just cant spell

[mel]

If only we could get a confession like that from campbell !

[campbell]

I read that mel where that bottle