Sometimes, it seems like there are a bunch of little chirping things going at it behind the instrument panel. I don't know what this is, but it seems like going over bumpy roads while accelerating tends to do this. They're high pitched little creaks/squeeks. ANyone have any idea? Is this what they refer to when they talk about octane causing pings? Which brings me to another note... anyone happen to know if my 99 manual stang would be ok w/ 91 octane? what do you all recommend? 87,89,or 91?
THanks
THanks