Contour Enthusiasts Group Archives Forums Modifications Forced Induction Fuel Issues

Was searching the huge database over here for addon info about putting nitro on the svt when I found that the csvt is recommended 91 octane only in the states, in sweden your 91 octane is the same as our 98 octane.

Here in sweden the csvt are recommended to use with 95 octane (thats our lowest class gasoline) and should be the same as your 87.

My question is if I should switch to 98 instead of 95 for slightly better performance and better knock protection?

The price is basiclly the same here in sweden and if i get more mpg then it's a win-win situation.

I did some basic searching on some swedish forums and i found that most people run there performance cars on 98 cause that gasoline can "withstand more preassure"

Anyone that have input on this is more then welcome to speakup

run the highest equivalent ot our 91/93 here in the states.

Exactly, go as high as you can without venturing into race-gasoline. Although race-gas it nice to use when you are going to try racing the car or want to test out high nitrous shots.

I wouldn't use lower grades of gas especially with nitrous. Have you seen was detonation looks like when hitrous is involved? It'll make a hole in a piston in a few seconds!

Ps say hello to my co-workers at SKF-Gotenburg!

Thumbs up guys , i'll start using 98 then

I'll make sure i'll do that when i see one Stazi

Right, it'll help get max performance out of the engine but it won't really improve fuel economy unless your lugging the engine and computer has been pulling a lot of timing. The latter part is unlikely as you live way north in sweden.