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Old 09-17-2013, 08:36 AM   #1
black_box
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Join Date: Jul 2011
Location: Brooklyn
Posts: 348
New(ish) Engine and Rebuilt Turbo Break-in Oil

Not actually a Porsche-related question, but you guys seem to know a lot about motors in general.

I am wrapping up an engine swap on my DD, a 2007 MINI Cooper S that sharted its original engine at 165k and is getting a lowered-compression, ported head, forged piston 8k mile 2011 MINI J.C. Works motor, along with an hybrid k03/k04 turbo, ported manifold, 3" downpipe, new clutch, radiator, and a water/methanol injection to keep everything happy. Looking forward to a 240 FWHP MINI monster that still gets 40 MPGs and handles on (tiny) rails!

The motor sat with fluids drained for about a year, and the turbo is freshly rebuilt.

I am planning to run full synthetic with 7500 miles changes just like I do on my Porsche, but am thinking of running ~1k on dino oil to "break-in" the motor and turbo and then dump and refill with synthetic. I won't crank the boost up until it's done some miles on the new setup (stock ECU boost limit is approx. 15PSI, I am planning to slowly increment up to 21PSI, the max safe boost that the JCW motor can handle).

Any ideas for "break-in" on a motor that's sat awhile? Both the motor and turbo have warranties, although I'd hate to try to exercise them.


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"Betty" -- 2000 Boxster S, Triple Black, loaded except PSM (sold to a good home)
"Veronica" -- 2008 Boxster S, Arctic Silver on Blue
"Maleficent" -- 2007 Cayman S, Red and Black, TPC Turbo 3.6L 460 RWHP, H&R RSS Coilover / TPC stage 2 suspension
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