Thread: L31 break-in
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Old 02-02-2019, 12:05 AM   #7
garyd1961
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Join Date: May 2016
Location: Henderson NC
Posts: 975
Re: L31 break-in

I just cranked mine up and kept it at a fast idle for a few minutes, checked gauges, checked for leaks, took it down the road. I changed the oil at 500 miles but I'm pretty sure they didn't change the oil in the trucks that these motors came in until 3000. New cars at work go 10,000 now before an oil change.
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