Recent content by Bapple0828

2018 Yukon Denali, 118k miles - DOD delete with Bryan Tooley racing cam and GM performance lifters - tuned by local shop Out: 8qts Pennzoil Ultra 0W-40, 7300 OCI Purolator Boss filter In: 8qts Valvoline Restore and Protect 5W-30 Purolator boss filter Oil analysis came back spectacular on...

I haven’t paid that much attention to it but maybe I should. I know it’s a very temperature-sensitive transmissionmission because when it’s cold it slips quite a bit into up to operating temperature. I assume I can see the transmission temp in the menu on the gauge cluster?

Mine is the standard wheelbase, not the XL. The XL version is available though.

Good advice. Mine has the 10 speed so I know it’s finicky. Had some torque converter shudder but fresh fluid cleared that problem. Keeping an eye on it!

Longtime lurker, first time poster. Thanks to everyone for all the knowledge. I’ve run samples of both 0W-20 and 0W-40. Currently running 5W-30 so I’ll have a sample of all 3. I live in south Louisiana so the warm viscosity is more important for me and I just want general protection and...