Thanks for the good advise. I will do the first at 3000, then maybe 5000 or when needed, but not over 5000. 12% oil life looks low, mine is 65% 2200 miles. The dealer's talk of $150 maintenance cost scared me into buying the service contract, that sounded too high. He said Hummer takes a lot of oil and it is a special vehicle so cost a lot to service. Now I think that was a snow job.
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