Northstar Ring Cleaning Procedure and proper oil level TSB

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Northstar Engines and System Technical Discussion Discussion, Northstar Ring Cleaning Procedure and proper oil level TSB in Cadillac Engine Discussion; Oil consumption rates and ring cleaning procedure....
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    Ranger's Avatar
    Ranger is offline Cadillac Owners Member
    Automobile(s): White Diamond '03 DHS (with DTS floor shift)
    Join Date
    Jun 2004
    Woodstock Ill.

    Northstar Ring Cleaning Procedure and proper oil level TSB

    Oil consumption rates and ring cleaning procedure.
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    Submariner409's Avatar
    Submariner409 is offline If it won't run, chrome it
    Automobile(s): 2002.5 F55 STS - 65500 miles, 2014 Explorer XLT FWD
    Join Date
    Feb 2006
    MD Eastern Shore, Kent Island

    Re: Northstar Ring Cleaning Procedure

    In the linked TSB, the first paragraph on P.3 also specifically states the proper GM recommended oil level fill procedure and dipstick indication.

    Why does the Northstar take 7.5 quarts of oil ??? Because a LOT of oil is circulated to the DOHC valvetrain for cooling - oil is the only medium that cools the engine rotating machinery ..............

    Also check out the revised head bolt degrees of turn change in the torque sequence. P.6
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