Quote:
Originally Posted by 69Farburd
My engine builder said to run it 500 miles. Some on here have said to change it immediately after initial break in, and some have said to just replace the filter. What is your opinion?
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Every builder will have their own procedure for what works for them. I usually advise guys to dump the Break In specific oil after the flat tappet break in period. Change to a good oil and filter and drive it for a week and change it again. I don't really follow that 500 mile rule, especially not on "Break In" specific oil, which is usually very thin and comes out like water even after the initial 20 minute rule, I don't trust leaving it in for long, especially 500+ miles, but that's just me. Oil changes being a little more frequent in the beginning and if all looks good, you can spread them out, just make sure with any oil change, you use a specific, clean drain pan. That way you know whatever was in the engine, is now in that pan....Hope this helps.