whats the recommended fuel octane for an '88 740T?.......i put midgrade which is 91 i think here in NC, but i still feel a lack of power, would premium help that?

 

I have a 91 Turbo and it says on the inside of the fule door to use super or the higest octane. But i am a college student and money is tight right now so i just put regular in and my car has be running fine and i feel the power. Maybe that helps?

 

ill prolly just get a tune up then, but when i put reg. in it sputs alot more.....so i wont go down for me.....

 

i put 95, which is the highest here