2002 type uk Sti prodrive and yes just popped millers cvl in tank will take her easy till empty then start using 99/100ron

cvl turbo octane booster i hope as i think the cv is just valve lube.

chopperman yes cvl octane booster so should do the trick raising it by 4 octane numbers....can sleep at ease tonight now....smiles...

:lol:..read through this and ask yourself that question again...:lol1:

rite lads n lasses think we made it now....the good news is sainsburys fuel station has 99/100 ron fuel so will be using that as tesco or shell no were near me, that will do i think dadoronron.....................................

Sainsburys don't do 99 or 100ron fuel. The highest you can get in the uk is Tesco momentum @ 99ron or shell V-power @99ron. You can get BP 102 ron at some stations normally near race tracks but at about £2.50 per liter.

yes they do in chopper popped in there after picking up octane booster and its 99/101 octane rating and women even said yeah we get loads of subaru cars come in for it,,!!!!

She's full of **** mate. Sainsburys do 95 and 97 ron and its crap. If i put Sainsburys petrol in my misses car it does 7mpg less than on other petrols. Up to you mate ,it's your engine.

Sainsburys best fuel is only 97 RON.

Personally, wouldn't be using it in my car.

Nor me mate.

Tonka2, if getting Tesco 99 or v-power is a problem just get your car mapped to run on SUL 97ron. I still still wouldn't use supermarket fuel though with the exception of momentum.

I'm just not a fan of supermarket fuel full stop.
Car is mapped on V-Power and my mapper advised me to only ever use it. I'm lucky though as have a shell within 10 miles of my house.

Mine was mapped on v-power but my mapper told me using momentum was fine. I normally use shell as it's closer to me.

My STi was mapped using V-Power but I regularly use Momentum and find it every bit as good as the Shell. No more activity on the KS3 than on V-Power.

JohnD

Gents, have a look around other posts, there are at least three threads running at the moment on this subject, eg "Fuel octane requirement"

This discussion was in June last year mate.