Pennzoil ultra platinum is made from natural gas not crude oil. Project Farm on YouTube has a good comparison between top oils and Pennzoil did great. I switched from Mobil 1 to Pennzoil.
50 miles after fueling up, the engine developed a miss on acceleration. It would cruise fine at 60 or 35. but accelerate a bit and it had a slight miss.I was thinking COP...plug...no check engine light.I am 200 miles from home heading into a rather sparsely populated region. Pulled fine up a...
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