Oil prefrance
#18
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I use Mobil 1 with no problem at all! Tried Mobil 5000 when I took it to a shop but I cant seem to find it at any Autozone or Oreillys :/. I bought a '90 f250 about a month ago and the oil was as black as satins heart and it was a little on the thick side like the oil additive I use. I drained that and put Mobil one and boy did a miracle work lol. No more tapping noises and the blow-by has been reduced drastically with a smooth idle.
#20
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I was always interested in RP but they only sell them in the small bottles... I work in different chemical plants and I remember one of them used RP so thats what originally gave me the idea