B18b1 Owners...what Octane Do You Use?

[beau_safken]

I'm in the mile high city so the choices are 87,89,91 octane. Which one do I need. Compression ratio is 9.2:1 so I was thinking that good old 87 would work. I am all motor and no mods just stock. What do you guys think? Flame away....

 

[vtecsir1]

i run 91 or higher but 87 is fine especially with the way gas is now.

 

[lsvtec]

you don't need to run anything higher than 87 in that engine.

 

[beau_safken]

That's cool. I was thinking that anything under 9.5:1 is 87, 9.5:1 - 10:1 is 89, above is anything else. Cool thanks guys. I guess I'll fill up on the cheap crap before the swap then.