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Mustang Forums
2012-2013 Boss 302 Mustang
motorcraft 5W50 replaced by Mobil 1 by ford?
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<blockquote data-quote="kcbrown" data-source="post: 13348948" data-attributes="member: 153731"><p>This is good to know, because it means that MC 5W-50 should probably also be avoided for the same reason, at least for the long term.</p><p></p><p>Based on the UOAs you've seen from the GT500s running MC 5W50, how many miles is it likely to be before the total lead wear becomes a concern? Wear is cumulative, so the wear numbers in the oil analyses should give an idea of this as long as one knows what the threshold is.</p><p></p><p>More specifically, the powertrain warranty I'll be faced with on my new 2014 GT with track package (which has been ordered but will take an unknown amount of time to arrive) is 5 years/60K miles. My suspicion is that running the MC 5W50 for the warranty period will work well enough even for track sessions, after which I can switch to something with better wear characteristics, but that depends on the actual lead wear rate and threshold.</p><p></p><p>I expect I'll be doing oil analyses from the very beginning, so I should get solid data about my car while on MC 5W50, and will be happy to post that up. It's likely to be a while, though, since I only ordered my car a week ago...</p></blockquote><p></p>
[QUOTE="kcbrown, post: 13348948, member: 153731"] This is good to know, because it means that MC 5W-50 should probably also be avoided for the same reason, at least for the long term. Based on the UOAs you've seen from the GT500s running MC 5W50, how many miles is it likely to be before the total lead wear becomes a concern? Wear is cumulative, so the wear numbers in the oil analyses should give an idea of this as long as one knows what the threshold is. More specifically, the powertrain warranty I'll be faced with on my new 2014 GT with track package (which has been ordered but will take an unknown amount of time to arrive) is 5 years/60K miles. My suspicion is that running the MC 5W50 for the warranty period will work well enough even for track sessions, after which I can switch to something with better wear characteristics, but that depends on the actual lead wear rate and threshold. I expect I'll be doing oil analyses from the very beginning, so I should get solid data about my car while on MC 5W50, and will be happy to post that up. It's likely to be a while, though, since I only ordered my car a week ago... [/QUOTE]
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2012-2013 Boss 302 Mustang
motorcraft 5W50 replaced by Mobil 1 by ford?
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