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SN-95 and New Edge Mustangs
Which synthetic oil do you use?
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<blockquote data-quote="BigDaveDogg" data-source="post: 2688877" data-attributes="member: 28762"><p>Alright, just rolled over to 46,000 this evening so I went out and bought some Mobil 1 5w30 and a Motorcraft FL-820S oil filter. I checked the Haynes manual I picked up a while back, and it stated 97+ 4.6L need 6 quarts, so that's what I put it. All looks good w/ Mobil 1 for now. How many miles do you guys drive w/ Mobil 1 synthetic before changing? I've heard 5,000 miles and 3,000 miles...which is recommended? If it's 5,000 I'll just change it again at 50,000 miles and keep it consistent from there, maybe try Royal Purple. Now I need to look into getting the transmission and rear differential oil changed. I was told not to use synthetic in the differential because it is too thin. If it's 75w90 or whatever, isn't it all the same stuff? And what should I use in the transmission?</p></blockquote><p></p>
[QUOTE="BigDaveDogg, post: 2688877, member: 28762"] Alright, just rolled over to 46,000 this evening so I went out and bought some Mobil 1 5w30 and a Motorcraft FL-820S oil filter. I checked the Haynes manual I picked up a while back, and it stated 97+ 4.6L need 6 quarts, so that's what I put it. All looks good w/ Mobil 1 for now. How many miles do you guys drive w/ Mobil 1 synthetic before changing? I've heard 5,000 miles and 3,000 miles...which is recommended? If it's 5,000 I'll just change it again at 50,000 miles and keep it consistent from there, maybe try Royal Purple. Now I need to look into getting the transmission and rear differential oil changed. I was told not to use synthetic in the differential because it is too thin. If it's 75w90 or whatever, isn't it all the same stuff? And what should I use in the transmission? [/QUOTE]
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Which synthetic oil do you use?
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