Engine oil PENNZOIL or Motorex

Grab a good quality 0/w20 synthetic. I'm currently using Pennzoil and a Fram filter.

I run Pennzoil ultra platinum oil and GM syncromesh trans fluid

Ultra premium is the best oil after amsoil, but amsoil is too expensive for this car, pennzoil is the best and cheap

I've been using penzoil platinum

I’ve used nothing but Pennzoil Platinum since the free oil changes ran out, 150k or so now, and never had a problem.

I prefer ultra platinum over mobil 1 since ultra is used with a group 3+ base oil, which has better heat handling than regular group 3 oil.

I use pennzoil ultra platinum 0w-20 and a purolator BOSS filter

I use Pennzoil Ultra Platinum 5w-30.

2020 Telluride with 80,000 mi still going strong with Pennzoil Platinum Ultra at regular change intervals.

I used Valvoline synthetic in my first SHO, and I am using Mobile 1 in my latest SHO. I tried Pennzoil in my 5.0 (Windsor) and all the lifters started clattering.