Quote:
Originally Posted by Gunkk
Two things need to happen during break-in. #1 is setting piston rings via the guide below. #2 is going easy on the rear differential for 1500 to give the gears time to mesh (hammer down asperities, etc.) and work harden.
When you pick up your car, follow the guide starting at step #6. Steps 1-5 were done at the factory. This guide is about setting the piston rings properly. Avoiding hard WOT pulls until 1500 miles is about letting the rear diff break in. Change your oil when you get home and send a sample to Blackstone-labs.com to get your baseline. 1st oil change at 1000mi is no big deal vs. 500 miles. But the opportunity to set the rings ends at about 50-100 miles.
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People keep posting this crate engine break in procedure...nothing to do with the engine in your car.
The standard break-in period is 1500 miles. Just go easy on the throttle and don't exceed 4000 rpm. For the sake of the differential, don't use cruise control and do vary your highway speed.
I'm at about 500 miles on my ZL1 and am driving to Lime Rock tomorrow. I will be following this advice as I cruise on the Mass Pike. My last car was a 2010 SS. I changed the oil first time at about 2000 miles. The car never burned any oil and went about 85k before i traded it in.