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German Castrol Oil...Green=bad?

This is a discussion on German Castrol Oil...Green=bad? within the Internal Engine forums, part of the LSx Technical Help Section category; I tested some German Castrol today using a bearing tester like what addative sales people use.You run an electric motor ...

  1. #1
    Member stanger88's Avatar
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    Sep 2006
    Shreveport, LA

    Black on black.
    2001 WS6 M6 (stock)

    German Castrol Oil...Green=bad?

    I tested some German Castrol today using a bearing tester like what addative sales people use.You run an electric motor turning a hardened bearing and you have another bearing grinding on that hardened one. You apply weight to the bearing and see how much weight it takes to stall the electric motor (oil is coating both bearings at this point.)

    I tested the older (green) GC and the new (gold) GC. The green GC was pure weaksauce, stalling the motor at 7# pressure
    (about what cheap dino oil does according to the guy)

    The gold GC stalled it at 19 and then 21 #, about what Schaeffers oil does, REALLY WELL! He said the only oil that did better when he tested it was Royal Purple. Again, he was an addative sales rep and could care less about repping for a particular oil.

    Just a heads up, the Gold seems VERY different from the a good way.

    (The area etched/ground) into the bearing with the green was 5x as big as that of the Gold, which performed almost as well as the green + his Motor Latte 12000 addative (didnt take as much pressure as the green + addative, but the wear spot was similar)

    here is a very similar test machine to what we used (different looking guage and shroud over belt):
    Last edited by stanger88; 05-15-2007 at 06:03 PM.

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    Veteran 0rion's Avatar
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    Aug 2005

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    06 duramax

    sarge should be all over this thread in 5...4...3....2....1...

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