Will my STI type R be ok running on super unleaded only or should i use octane booster as well.Any comments appreciated

 

I would use just optimax if available round here it's 73.9p and 98.6 octane sul is more dosh and only 97 octane.

 

No sign of Shell Optimax in newcastle.Cheers for the reply M8

 

I know what you mean I was up north at xmas near Richmond all I found was SUL at the shell on the A1 at scotch corner and also in Darlo sorry southerners I mean Darlington. It might be worth going on to the shell website and e-mailing them to find your nearest or when its arriving. Till then its back to the octane booster I always used pro-boost when I raced quads so I stuck with that one.