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Old 02-05-2018, 05:53 PM   #105
rich1
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Join Date: Oct 2007
Location: RTP/ N.C.
Posts: 4,813
Re: Important Information About Mobile 1 Synthetic Motor Oil For Mach 1's

Oil is like BEER everyone has their own brand.

I have used Castrol in every thing I have ever owned with zero engine failures. Once I let the dealer change my oil to Motorcraft 5W20 when the Mach was getting an alignment. I live 4 miles from the shop and the motor started tapping more and more on the way home. I put it up on my Quick Jack and changed the oil back to Castrol Edge it stopped the noise. As far as the weights.... 5 W30 in the summer (thicker) and 5 W20 winter (thinner). I will repeat the same thing in the 5.0 Coyote too.
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