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  1. Which are true (!) PAO (Class IV) Motor Oil brands?

    Apr 26, 2008 · Valvoline SynPower is primarily group III with PAO blended in. Pennzoil Platinum, Quaker State Q, and Castrol …

  2. DEXRON VI - what is the difference between brands?

    May 7, 2009 · I was looking at getting GM brand Dexron VI for my car but I see brands like Valvoline, Castrol, ACDelco and Walmart …

  3. Valvoline SynPower now dexos approved | BobIsTheOilGuy

    Mar 17, 2011 · With their recent tie-up with Hendrick Motorsports, and Hendrick's close association with GM, and as many had …

  4. Best 15 W 40 Diesel Oil | BobIsTheOilGuy

    Jan 2, 2008 · IMO, you can't go wrong with Rotella, when used in the proper viscosity, proper drain interval, etc. Other good HDEO …

  5. Mitsubishi Diamond SP substitute today? | BobIsTheOilGuy

    Dec 13, 2010 · The only thing that annoys me is that on multivehicle atf-s for example Valvoline Maxlife ATF, only SP-II and SP-III …

  6. Valvoline Max Life 5W-30 | BobIsTheOilGuy

    Mar 7, 2010 · Valvoline MaxLife 5w30 Synthetic Blend. What is the general feeling on this oil. Years ago as a conventional oil it …

  7. Mixing different ATF's? okay or not? | BobIsTheOilGuy

    Jun 6, 2011 · I'm having a hard time grasping why big players like Valvoline and Pennzoil would assume the risk of marketing 'mulit …

  8. Anybody ever use Lucas 80w-90 Gear Oil? | BobIsTheOilGuy

    Oct 25, 2010 · Actually, I was going to buy Valvoline 80w-90 but my NAPA was sold out. 75w-90 Valvoline conventional was the only …

  9. Sportster oil for engine & trans/primary | BobIsTheOilGuy

    May 25, 2011 · Mobil 1 V-Twin 20W-50, Valvoline RACING 20W-50, or Valvoline 20W-50 4-stroke MC oil for the crankcase. Some …

  10. Valvoline class action lawsuit | BobIsTheOilGuy

    Mar 24, 2026 · So I don't think this will gain any friction (see what I did there?) but I thought I would post for your thoughts. Valvoline …