It still makes no sense. You are saying that CA has a law on the books that says that belts must be good for x miles? In fact that is what I have heard in the past, and you'd think that would either drive the market to two different belts (one for CA cars, one for all others) or standardizing on the better belt and the one change interval. If it's a durability standard, then if they're using the same belt, how does that work out to two change interval recommendations?
As far as I'm concerned, we still don't have an answer on this - the situation can't be totally explained by two different tailpipe standards nor by two different durability standards (since there aren't two different belts - one for the CA car and one for the EPA car).
If it's the same belt, it seems like the consumer ought to go by the CA car interval whether it's a CA car or not.
Bill Putney (To reply by e-mail, replace the last letter of the alphabet in my adddress with the letter 'x')