Most I drive is to/from work, 15 miles each way. I do drive on a freeway but with commuter traffic not very fast. Fastest I go is 75mph and for bursts of a minute or two. Do you think if I take it out on a stretch of highway in a remote area and let it go consistently at say 85mph for about 10-15 minutes, it might re-code everything? That's what I've been hearing might work.

And yes, I will try Autozone and see what they say.