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    Oil recommendation - 2010 Mustang GT 4.6L ???

    Originally Posted By: SIXSPEED Originally Posted By: almost_heaven I agree with the posters that say the 5w20 oem spec is mostly for the oem to meet CAFE. Additionally, 5w20 is the only weight that ford uses - they save a lot of money by only having one weight to deal with cradle to grave in...
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    Oil recommendation - 2010 Mustang GT 4.6L ???

    I agree with the posters that say the 5w20 oem spec is mostly for the oem to meet CAFE. Additionally, 5w20 is the only weight that ford uses - they save a lot of money by only having one weight to deal with cradle to grave in their business. And the amount of problems from consumers using the...
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    Oil recommendation - 2010 Mustang GT 4.6L ???

    Originally Posted By: cheetahdriver The thick oil guys need to get some "Just for Men", their gray is showing... Borrowing one of my favoriae lines - "Now that's funny right there, I'll tell you what."
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    Oil weight vs protection question

    I have a 2010 Jeep GC with 5.7L Hemi, 10k miles. Two related questions: should I use 5w30 when towing?; will using 5w30 harm the MSD system? Originally Posted By: NYH Originally Posted By: 440Magnum Originally Posted By: CATERHAM IIRC truck mfters such as Toyota and Ford that recommend 20wt...
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    Syn Wgt for Street / Circuit

    Searched and did not find a good answer to this question. Wondering what you all recommend I use for a street car that will see some circuit track use in Virginia, with summer ambient temps near 100, winter near 30 degF? Car is 4.6L, 3v, 2007 Mustang GT, with CAI and 93 oct tune, about 300 rwhp...
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