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  1. S

    Potential abnormal oil pressure 2014 Yukon

    Changed oil with name brand 10W-30 and some Lucas. Oil pressures returned to slightly above normal. Have driven it about 400 miles and pressures have not dropped. Just goes to show that amazon reviews of oil are shit. Obviously 10 of thousands of people do not have oil pressure gage.
  2. S

    Potential abnormal oil pressure 2014 Yukon

    Nah just added that ammount to change the viscocity of the oil to see if it was breakdown. Even though it is a bit high now I needed to add enough to see a difference on the crappy dash guage if the new oil did change the viscocity and raise the pressure, which it did slightly. Oil only has 4k...
  3. S

    Potential abnormal oil pressure 2014 Yukon

    Added that ammount to see if it was a viscocity breakdown. It is a little high however needed a couple to ensure that the new oil could change the viscosity enough that I could notice a change of pressure on the inaccurate dash guage. Yeah not one of those guys that runs high miles between...
  4. S

    Potential abnormal oil pressure 2014 Yukon

    oil is about 4-5k miles old however I think I used a bargin brand 5w-30 this go around due to positive reviews and dudnt put lucas in like I usially do. It is running a Mobile 1 filter. I don't belive I'm in any danger also however this is the first of this generation of vortec that I have...
  5. S

    Potential abnormal oil pressure 2014 Yukon

    2014 Yukon 5.3l around 75K miles. AFM disabled about 10k miles ago. Typically oil pressure runs "per factory gauge" 20psi at idle and around 40psi normal at temp driving. Noticed over the last couple of days that presure has been dropping. Yesterday it was 20 at idle and running around 30...

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