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JR1 Racing Oil JR 4.1 20W50 Synthetic Blend Race Oil 12 Quarts

580-JR4.1-20W50C

made in usa

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JR 4.1 20W50 Synthetic Blend Race Oil 12 Quarts
SAE 20W50 Synthetic Blend Race Oil
  • 12 Quarts
  • Currently unavailable.
    This product is not available, please call customer service for options, at 1-800-345-4545.

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    JR4.1-20W50C is rated 5.0 out of 5 by 3.
    Rated 5 out of 5 by from Awesome Sbc on alcohol tried a lot of different oils and none have stayed as good and long as jr1 doesn’t milk up been running for several years now
    Date published: 2020-04-08
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    1) not familiar with this brand, who makes this oil? 2) does it contain "zddp" (aka zinc) compound for flat tappet cams?

    Asked by: heavychevy383
    This is made by JR1 and does contain high levels of ZDDP for great wear characteristics.
    Answered by: Rusty B
    Date published: 2018-03-21
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