I'm going to stick with the recommended 7500 first oil change. Today's vehicles are better engineered than they were just a few years ago. For an example, the new GM Trailblazer, Envoy, and Bravada's first recommended oil change is 15,000 miles.
Be careful on 3750 1st oil change
I recently had my first check up and was informed that the dealer will only change the oil and not the filter. I would definitely reccommend that you guys pay for the filter if you have to. There could be small metal pieces from engine during break-in and I believe they need to be removed. I actually broke my vehicle in for the first 1000 miles under 55 miles per hour and alternated the rpms when driving. I had my first check up at 3000 miles and have them change oil and filter. I plan to follow a 3 month 3000 mile interval for oil changes. I will make sure to do the 7500 real axle fluid which everyone says is so importment to keep up with also. I was shocked to find out about no oil filter on first check up
