Ok, maybe this question has been answered before, but I'm going to ask anyway.

Up until about 2 months ago when I started coming to this site, I was putting 89-90 octane into my car. Just recently (about a month ago) I began buying the premium, 91 octane. My question is, would I have done any permanent damage / lost any power (permanently) due to not using a premium gas? Try not to bash me too much. lol. Thanks.

Phil

 

No harm done, but always put premium. It saves you money and it is good for hte engine.

 

Ok great. Thanks man. I was worried about that.