- Jul 18, 2000
- 17,112
- 1
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I've never used the stuff........see no sense in it since modern oils all do a good job. The real worry should be oil filters....die Fram die!!! Anyway....My GF's Dad just bought a new car a few months ago, 2003 Toyota Camry, and he needs an oil change soon. He's 75 and really shouldn't be crawling under cars so I offered to do it for him this coming Saturday. He insisted on paying for the oil and in the process of doing so told me he wanted Pennzoil and to buy some STP oil treatment for it as well. I started off by trying to sell him on Mobil1 but after about 30 minutes I gave up on extolling the virtues of synthetic oil......So back to the argument about STP.....I told him I really didn't think it was necessary because modern oil is all so good. He swears by STP and says he has been using it since the 50's and that he will always use it. I have no real argument here except for some data I pulled together back when I bought my Durango back in 2000 and was researching if I should go to Mobil 1 or not. Can someone out there that knows something about STP or oil treatments give me some info on if it's really needed or not?