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  1. donjetman

    Oil Leak Near Transmission Pan

    No it hasn't been off. I replaced the rear main seal 5 yrs ago. Still dry as a bone 60k miles later. https://www.tahoeyukonforum.com/threads/rear-main-seal-job-pan-etc-07-yukon-denali-6-2.108334/
  2. donjetman

    Catch can flow discussion

    I have a $130 Mike Norris Motorsports catch can on my C5 Corvette. Inlet on top, outlet on side. It doesn't catch liquid any better than the $30 side inlet and outlet chicom cc that's been on the Yukon for 5 yrs.
  3. donjetman

    Normal Motor Oil Usage?

    On the driverside the PVC (positive crankcase ventilation) system uses vacuum from the intake manifold to draw out crankcase gases (blowby) from the engine via the ds valve cover area. If the baffling in the driverside valve cover is designed properly it draws gases only, not liquid oil. Most...
  4. donjetman

    Catch can flow discussion

    I installed this cheap amazon chicom catch can 5 yrs ago. I added pot scrubber matl and drain valve. Its still working good today.
  5. donjetman

    Public Service Message - AFTERMARKT O2 sensors SUCK!

    07 Denail 6.2L I changed all four of the original 175k mile working good O2 sensors with two GM genuine parts # 213-3533, $58ea, & two # 213-3538,$53ea - amazon 18 mths ago. :peace: :waytogo:.
  6. donjetman

    Normal Motor Oil Usage?

    1 qt/4k miles is not good. Driverside valve cover = GM pt# 12570427 for 2007-2008, and GM pt# 12642655 for 2009-2011. https://f01.justanswer.com/ebrock63/cec66346-04c1-48e0-98a6-74c35af2c84e_2014+Engine+-+Oil+Consumption,+MIL+ON,+Engine+Runs+Rough.pdf
  7. donjetman

    2013 Yukon XL - loose steering. BBB brand rack and pinion? Gear box?

    Rack & pinion is the steering gears box.
  8. donjetman

    Heater hose Tee connections

    https://www.tahoeyukonforum.com/threads/heater-hose-part-numbers.116762/#post-1412535
  9. donjetman

    Rubbing sound after dropping front differential

    I've dropped mine and didn't do that sequence?
  10. donjetman

    Best option for my transmission?

    our 6L80 has had the 2-3 flare above 3k rpm when cold since we bought it 5 yrs and 60 k miles ago. So I lift off the gas pedal during the 2-3 shift a little under that condition. I do used atf analysis and change the Dexron6 each 25k miles and filter each 50k miles. It is driven conservatively...
  11. donjetman

    Spark plug debate - 2013 5.3 LMG

    I installed AC Delco 41-962 plugs 2 yrs 20k miles ago and AC Delco 9748RR wire set 5 yrs and 60k miles ago, both from amazon, no issues.
  12. donjetman

    Strange start after battery died during oil change, video included

    We leave doors, hood, hatch, etc open on our vehicles (07 Yukon, 12 MKX, 07 FJ, 02 Vette, 51 Chevy PU) and never have a battery problem. The body control module in each is functioning properly. The Yukon has a 5+ yr old Duralast ProPower agm battery that was in the vehicle when we bought it 5...
  13. donjetman

    Want to take my 2010 Yukon XL Denali with 180,000 miles for a family trip from Michigan To Florida - Can you help me make this a success!

    Whenever we travel we carry the lite little 1.5 ton aluminum Harbor freight floor jack, 22mm socket, and breaker bar.
  14. donjetman

    I Need Help!

    Make a youtube video w/audio and post the link here.
  15. donjetman

    front differential fluid

    synthetic Mobil Delvac 1 75w-90 or Amsoil severe gear 75w-90 in all my vehicles for the last 15 yrs. Recently I switched the Yukon to synthetic Redline 75w-90 front and rear because I got it at 75% off the retail price and it was time.
  16. donjetman

    Strange start after battery died during oil change, video included

    Maybe? Leaky injector(s) partially filling a cylinder(s) with fuel so it hydraulic locked when you first tried to start it. Then when you jumped it it did what it did.
  17. donjetman

    Oil catch can install

    Passenger side is clean filtered incoming air, driverside is dirty out going air. Youtube is your friend (how crankcase ventilation works).
  18. donjetman

    My Aug of 23 Blackstone used engine oil analysis report

    Here are 3 previous used oil reports for the 6.2L, and a baseline (BL) or virgin or unused report. All 4 of these previous reports are about Mobil Delvac 1 ESP 5w-40. The 3 best reports when looking only at Iron (Fe) ppm are: 3/29/19, Mobil Delvac 1 ESP 5w-40, 8100 miles, Fe=39 ppm or 4.8 ppm...
  19. donjetman

    My Aug of 23 Blackstone used engine oil analysis report

    Gen1 Restore exists in my world :) https://www.advlubrication.com sales many high end lubricants similar to the Gen1 Restore that I scored and I'm currently blending with oils available at wally world.
  20. donjetman

    My Aug of 23 Blackstone used engine oil analysis report

    Here's the T6 virgin/new analysis report: https://www.speediagnostix.com/new-oil-analysis/rotella-t6 Here's the comparison of the two Valvoline Restore 10w-30.........Rotella T6 5w-40 Viscosity 11.7 .........................................15.1 Oxidation...
  21. donjetman

    My Aug of 23 Blackstone used engine oil analysis report

    Here's another discussion about Valvoline "RESTORE"; https://bobistheoilguy.com/forums/threads/valvoline-premium-blue-restore.260699/
  22. donjetman

    My Aug of 23 Blackstone used engine oil analysis report

    Here's a discussion about it: https://bobistheoilguy.com/forums/threads/found-a-premium-blue-restore-voa.310971/ Cummins and Valvoline have since introduced the GEN 2 version of Restore: https://partner.valvolineglobal.com/en/lp/premium-blue-restore/ The POE/Ester, etc content of this...
  23. donjetman

    My Aug of 23 Blackstone used engine oil analysis report

    Valvoline Premium Blue "RESTORE" virgin/new oil analysis. Viscosity should read 11.7 not 1.7. it's a unique oil that is no longer available. It was expensive because its ingredients are expensive. I got lucky and found 4 gallons on BITOG...
  24. donjetman

    My Aug of 23 Blackstone used engine oil analysis report

    In 2020 I modified this vehicle. I increased its oil sump capacity to 11 qts, added an oil cooler, and added a remote engine oil bypass filter setup (Amsoil EaBP90). Our use of this vehicle changed mid-2023. We no longer are using it (as often) to make the 1000 mile each way trip between our TX...
  25. donjetman

    My Aug of 23 Blackstone used engine oil analysis report

    This UOA report is about 0w20 synthetic "performance" motor oil that Superior Lubricants of Hebron, IN sales & distributes via HPLoil.com, and/or 219-996-3460. It's not their "race oil". The vehicle is our 07 GMC Yukon Denali w/all aluminum 6.2L L92 with 190k miles. We've owned it for 5 yrs. It...

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