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Old 07-05-2020, 12:36 PM   #4
AussieinNC
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Join Date: Jun 2017
Location: Cherryville, NC
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Re: Cylinder leak down test results - warm engine

Quote:
Originally Posted by AussieinNC View Post
The higher figures on previously low cylinders is likely due to oil being pulled into the chamber sealing off the rings..

Highly unlikely you wont find broken rings in the sump....

I would contact the builder asap....

No need for break in oil...these are roller lifter engines and dont need the Zinc found in break in oils....

Zinc will kill a CAT if you use break in oil in a vehicle with CATS....

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