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    Reduced ZPPD in Straight Grade Oils too?

    Do the straight weights like SN rated SAE 30 HD oils have reduced ZPPD levels too, as per regulation standards?
  2. H

    Rotella T1 30w not for high speed engines?

    Just bought a gallon of Shell Rotella T1 30w for our new Generac 10000w generator for its first oil change when it reaches 10hrs(at 9hrs after tonight). We run a BMX track that's off the grid, and will put the generator through an average of 10hrs every week with 4hrs during Wed. practice at 40%...
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