Search results

  1. Big O Dave

    I think my fleet is expanding...again. Not sure what to buy next.

    This is a SUPERB car! I was shocked at how smoothly it rode on the terrible streets of Newhall with those extremely low profile tires. Quiet, powerful, excellent handling - I am impressed! It was good meeting The Critic in person! We've known each other for at least 20 years at BITOG...
  2. Big O Dave

    Need a higher viscosity oil than 5w30 that keeps rings clean

    1 qt in 15 miles 😳 That’s CRAZY! Is it a typo?
  3. Big O Dave

    Best 5w-30 engine oil on the shelf at Walmart?

    Yes, that is what I meant. In my opinion.
  4. Big O Dave

    Which Group III/III+ oils are least likely to be affected by the Iran War?

    With the damage/destruction to refineries in the Middle East, which oils are most and least likely to be affected?
  5. Big O Dave

    Best 5w-30 engine oil on the shelf at Walmart?

    From my experience I’d have to say Valvoline Restore and Protect.
  6. Big O Dave

    Does Shell/Pennzoil GTL Cause Less GDI Intake Valve Deposits?

    BINGO!! You may not be an "expert," but you know and understand a LOT about this subject matter.
  7. Big O Dave

    Where did all of the 30W conventional go?

    Forgive my ignorance but what is an OPE engine?
  8. Big O Dave

    Post your latest oil change

    2020 Cadillac XT5 LSY 0W-20 Valvoline Restore and Protect Vietnamese Carquest oil filter
  9. Big O Dave

    Valvoline Hybrid Oil in a non-Hybrid turbo DI engine?

    Seems pretty stout: Valvoline 0W-20 Hybrid PI page Thoughts on using this in a non-hybrid?
  10. Big O Dave

    2026 Cummins Teardown Video - Chinese Block

    Dave's Auto Center 2026 Cummins Teardown Apparently, the truck this engine came from was in a serious fire. Block designed with an innovative oil heater. Dave sure has an impressive shop!
  11. Big O Dave

    Valvoline Restore and Protect Oil Burning Update - 2018 Chevrolet Equinox

    It seems that under ideal conditions and in a superb engine, 10,000 miles is doable with Valvoline Restore and Protect. I still believe (there's that word!) that with a turbocharged GDI engine the intervals should be shorter. But, that's just me...🤷‍♂️ FWIW, I am running Valvoline Restore and...
  12. Big O Dave

    Valvoline Restore and Protect Oil Burning Update - 2018 Chevrolet Equinox

    I'm a big believer in the merits of Valvoline Restore and Protect, but without knowing the vehicle and engine, I would say that I would never exceed a 5,000 mile interval with a turbocharged GDI engine, and would most likely not exceed 4,000 miles. For me, that's probably true regardless of oil...
  13. Big O Dave

    Load E versus XL tires

    I went to the Ford website, and sure enough, it shows E-load range tires for the Expedition. What is striking, and possibly a typo, is that it lists the tires as P265/70R18E. As a former tire dealer, it struck me as either a very new development in the tire industry (that a P-metric tire would...
  14. Big O Dave

    Base oils in relation to timing chain wear

    I know that the use of AI here is frowned upon, but I didn't know what this meant, so I Grokked it, and I think others may find this useful, too. Per Grok: "**"Full shear" conditions**, as used by Gokhan (a well-known member on BITOG/BobIsTheOilGuy forums), refers to engine lubrication...
  15. Big O Dave

    Does anyone buy from Tire Rack anymore? It doesn't seem worth it......

    Historically, I've bought from Tire Rack. This most recent purchase was from America's Tire, which is essentially the brick and mortar owner of Tire Rack. I needed tires right away, and I couldn't wait for a shipment.
  16. Big O Dave

    “I Do Cars” Chinese LSY Teardown

    Eric said that it appeared to have 7,000mi oil change intervals with dealership bulk oil. Not optimal, for sure. At least they used OEM oil filters.
  17. Big O Dave

    “I Do Cars” Chinese LSY Teardown

    I Do Cars CHINESE LSY teardown Engine is from a Chinese-made Buick Very interesting, and a STRONG case for Valvoline Restore and Protect and short OCIs.
Back
Top Bottom