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Thread: Penn Grade 1: formulation change?

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    Senior Member Veronica87911's Avatar
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    Penn Grade 1: formulation change?

    I just read a thread somewhere that Penn Grade 1(formerly Brad Penn) change its formulation to lower levels of ZDDP; anyone here heard of this change?
    Serge

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  3. #3
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    As seen on the Bird on 7/26/2019:

    Quote Originally Posted by Bill Verburg
    There have definitely been formulation changes in some oils over the last 10 yrs.

    LN Engineering puts out an informative series of updates on this topic

    here is the latest detailing changes in Brad Penn and VR1

    LN is recommending the newest line of Driven oils, specifically Driven GP-1 20w-50 or 15w-40 for the aircooled cars

    I see no change in M1 15w-50 and will continue to use it in my cars.
    Harry

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