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I’ve ran Pennzoil Ultra/Platinum 0w20 since factory fill. Just hit 73k and needed an oil change. In my last UOA post, Mobil 1 0w30 ESP was highly recommended, and the store was out of 0w20 PUP, so I decided to give it a go. I’m doing a little reading about it and found ESP doesn’t have the...

Just another data point. I wasn’t able to find PUP, so I’m running PP 0w20 this time. I asked about how they think they compare, and they said it should work fine. Just FYI, the oil life meter said I needed to change at almost exactly 10k, and I ran 1,300 past that for science because they...

BlackStone was who my father (airframe and power plant mechanic & heavy diesel mechanic since the late 70’s) religiously used and recommended for decades and was literally the only lab I even knew existed before coming here. I was fine with a week or 2 wait, then 3 became the norm, now it’s 4...

I sent a sample in at my last oil change and just got this back from Blackstone. I thought I would share. 2021 Bighorn 1500 4x4 3.6L E-Torque Pentastar Pennzoil Ultra Platinum 0w20 Sampled at 52,068 miles 9,431 miles on oil - The vast majority being highway miles, with ~300 miles of towing a 7k...

Just got this back from Blackstone and thought I would share. 2021 Bighorn 1500 4x4 3.6L E-Torque Pentastar Factory Pennzoil 0w20 fill Sample taken 4 months almost to the day from purchase 3007 Miles 155 Total Hours, 65 Hours Idling 90 Hours Driving Oil Life meter showed 56%