In the time that I have been reading these forums, I have seen a number of products bad mouthed. Most notably Pennzoil and Fram filters.
I was told by an old timer when I was a teenager that he had never lost an engine to Pennzoil. I took him at his word, and have been using Pennzoil ever since. Like him, I also never lost an engine to Pennzoil. I did lose one to Quaker State oil. Threw a rod on my 1962 Oldsmobile on Christmas Eve taking my buddy back to the airport to catch his flight back to his naval base.
I currently have a 1993 Taurus that has only seen Pennzoil and Fram filters since my ownership of it. Showing 186,000 miles and sounds as good as it ever did. Starts good, runs good, drives good. I also have a 2000 Explorer with the 4.0 engine. This has also seen only Pennzoil and Fram filters. Just turned over 243,000 miles on it yesterday. Like the Taurus, starts good, runs good, and drives good.
This "evidence" is ANECDOTAL. Has no basis in SCIENCE. All of the other posts are likewise anecdotal. This is not scientific evidence. It is only relating personal experiences.
I would like to see some REAL evidence. Scientific research methods applied. And, no, I am not questioning other folks experience, only stating that it is not scientifically valid. Personally, I am not trying to "save a few bucks" on an oil change. I am just using a product that I have reasonable faith that it will not ruin my engine.
It seems to me that if Fram was really that bad quality, they would be loaded with lawsuits - likely class action. AND, they would not be all over every parts store in town as the main brand sold.
Another thing I would say about oil is this: Too many drivers will put any old oil that they have handy into their engines. I have a theory that it can be more damaging to mix brands of oil than any one oil may be. Undesirable reactions between the different additives that each one use. Low quality "generic" oil with some department store or gas station's name on the container. Who knows WHAT might be in that container!!
Until proven different, I will stick with the combination that has worked well for me for over 40 years: Pennzoil and Fram.
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