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  1. C

    Diesel oil shortage on Walmart shelves in New Mexico. Is Walmart wanting to emerge from the pandemic and only sell or promote their house brand now.

    There is no name brand diesel oils on the shelf and we’re going into 2022. My Duramax had always used delvac and Delo conventional. I might have to use Supertech or pay the ridiculous prices at the parts store.
  2. C

    2016 GMC Yukon 5.3 0W20 Supertech full synthetic 5191 miles

    Good evening I would appreciate your knowledge and experience in interpreting this report. I used Supertech 0W-20 and a new style Supertech MT 10575 new Walmart oil filter. After reading this report I’m planning on 5K OCI because of the flash point. Unfortunately this GM Yukon eco tech 3 5.3 has...
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