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  1. Z

    Thicker oil with E85?

    You can either go to a thicker grade, or shorten your oil change intervals.. or both. As long as you get your engine temp above 170 degrees, it'll burn off the moisture from the ethanol. You'll definitely break down the oil faster if you're running the car for short intervals and not letting it...
  2. Z

    HPL July 4th Sale - What Do You Plan on Buying?

    I placed an order for 12qts of 5W-30 Bad Ass Racing Oil. Not going to pass on their oils for an even better discount than the BITOG one.
  3. Z

    2024 Silverado 3.0 Duramax, 18.8k mi; 5W-30 Amsoil Diesel Oil 5k mi

    FWIW, Amsoil now has DexosD listed on their 5w30 diesel oil bottles for which specs it meets or exceeds.
  4. Z

    Purolator 20k C&P

    Probably one of the worst filters I've ever seen.
  5. Z

    2024 Silverado 3.0 Duramax, 18.8k mi; 5W-30 Amsoil Diesel Oil 5k mi

    HPL makes great oil. I use their racing oil in my Camaro's 565
  6. Z

    2024 Silverado 3.0 Duramax, 18.8k mi; 5W-30 Amsoil Diesel Oil 5k mi

    Not really, I've been an amsoil user almost exclusively for a few years. I usually buy enough to keep my PC membership free throughout the year. Mobil 1 makes great oil though. I don't see a need for 0W oil unless you live in a cold region. Less viscosity modifiers means more stable oil at...
  7. Z

    2024 Silverado 3.0 Duramax, 18.8k mi; 5W-30 Amsoil Diesel Oil 5k mi

    The most idling I do is a few minutes before before I start my driving in the morning. I'd hope it's not a leaking injector with only 19k miles on my truck, but it's not like GM has had some issues lately. I emailed LSJ about my fuel dilution issue last night when I saw the report and he told...
  8. Z

    2024 Silverado 3.0 Duramax, 18.8k mi; 5W-30 Amsoil Diesel Oil 5k mi

    I wouldn't be opposed to using a 40 grade. I haven't seen anything about the engine temps getting that high, but me being in Texas, I can believe it
  9. Z

    2024 Silverado 3.0 Duramax, 18.8k mi; 5W-30 Amsoil Diesel Oil 5k mi

    I occasionally watch DemonWorks videos on YouTube, and he has a video or two showing various UOAs for the babymax. The UOAs with 5W30 have always been noticeably lower in wear metals than the 0W-20s. The Rotella MV and Amsoil 5W-30 showed some of the lowest from what I saw Does HPL offer a...
  10. Z

    2024 Silverado 3.0 Duramax, 18.8k mi; 5W-30 Amsoil Diesel Oil 5k mi

    Yeah, my last oil change was at 13,700ish with the HPL
  11. Z

    2024 Silverado 3.0 Duramax, 18.8k mi; 5W-30 Amsoil Diesel Oil 5k mi

    Switched from HPLs 0W-20D after less than stellar wear metal totals. Amsoil 5W-30 Diesel Oil showed a very good reduction in wear metals. Not sure what caused the fuel dilution increase, only thing I can think of is that I use OptiLube XPD every fill up, so I'm going to stop using it as much...
  12. Z

    Fram titanium and extra guard okay to use?

    I used Fram titanium 12447s on my 3.0 duramax Silverado. Every one I've cut open has had a wire backing and no quality issues that I could find
  13. Z

    Extended life (time not miles) filter for small block Chevy

    If you can find OG Fram Titanium FS5s at your local Advance, I'd say go for those. I have a stash of them for my BBC
  14. Z

    UOA: HPL PP 0W-20 D, 4977mi, 2024 3.0 duramax Silverado

    Almost 14k miles. I've done 4 oil changes since new to flush out break in materials
  15. Z

    UOA: HPL PP 0W-20 D, 4977mi, 2024 3.0 duramax Silverado

    I do, but it was for the break in period when I switched from factory fill to the 0W-20 Amsoil 100% synthetic diesel oil. The only thing I have to go on right now is this one
  16. Z

    UOA: HPL PP 0W-20 D, 4977mi, 2024 3.0 duramax Silverado

    Not really sure how to feel on this one. Wear metals very high, but the comments remark that it could be a conflict with my previous oil used, which was Amsoil 100% synthetic diesel oil. Going to do a double flush and move up to 5W-30 and stick with Amsoil
  17. Z

    Post your latest oil purchase or even filter.

    36qts of 5W-30 HPL Bad Ass Racing Oil
  18. Z

    2024 GM LZ0, 12.1k mi; Dexos D 0W-20 5.2k & 6.9k miles

    I just sent off a used oil sample of HPL's PP 0W-20 D to SPEEDiagnostix a couple days ago. Hopefully next week I'll have an analysis of it to see how it compares to the other DexosD oils. I switched to Amsoil's 5W-30 100% Synthetic Diesel Oil, though. All of the UOAs I've seen of LZ0s using...
  19. Z

    What are the best high ZINC oils in 2024? High performance application.

    There's plenty of oils on the shelf that are made for classic cars with more zinc. You go that route if you don't want to spend too much, or you can go fancier with something like Amsoil Z-rod or Driven GP1.
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