87 Octane

[Scottio57]

I hope 87 isn't bad for my engine. I've been using it in my T with a Z head and my A with a B (police) head for many years now. I use 87 in everything except the V-10 motor home that requires mid grade.

[1929]

Originally Posted by Scottio57

I hope 87 isn't bad for my engine. I've been using it in my T with a Z head and my A with a B (police) head for many years now. I use 87 in everything except the V-10 motor home that requires mid grade.

Some are telling me, if you have a stock motor its ok, but if your engine has upgrades with higher compression, no. I can only say one thing I know, with my back pack Redmax blower I only use 89, because the store I bought it at says they will void the warranty if you use 87.