Hi DrG
Hummer has a break in. But, on every vehicle I have owned and every engine I have ever built My philsophy is break in the engine like Your going to drive it. In my case it is foot on accelerator pushed through floor. I wrote the man a check jumped in it and drove it to Dallas and back at about 80 MPH. But I did follow one rule but not by choice. I did fluctuate the speed some but, only because of all the people who were peddling their rides down the freeway.
Oh and I have never lost an engine and have gotten some tremedous amount of useful miles.
TAZ
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05 H2 SUV cus. paint, Magnuson SC 6/12lb boost, cowl hood scoop, 12" dash touchscreen, GM elec. fans, HPTuners.com tuning soft., Dynatech headers dual catback exhaust Jet Hot chrome front to back Flowmaster Super 40's, Diamo 8 Karat rims & 325X60-20" Toyo, 4 OEM Captain seats Katzkins leather, rear console computer inside running all AV/NAV etc., Infinity component system 3 amps Tsunami Caps, rear flip down 12" monitor, headrest monitors, overhead console boost, fuel pressure, & A/F ratio gauges
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