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2012-2013 Boss 302 Mustang
Something to consider when the oil change topic happens here
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<blockquote data-quote="UnleashedBeast" data-source="post: 10821643" data-attributes="member: 112023"><p>Amsoil 10W-40 AMO exceeds the minimal specifications of Motorcraft 5W-50. I've discussed this with two area reps from Ford. They both agreed there is no way they would ever void an engine warranty claim when a UOA confirmed the oil was superior to Motorcraft. </p><p></p><p>Motorcraft has a virgin viscosity of ~20.0 @ 100*C. </p><p></p><p>Amsoil has a virgin viscosity of ~14.6 @ 100*C.</p><p></p><p>Motorcraft after ~2,000 miles has a viscosity of ~12.8 @ 100*C</p><p></p><p>Amsoil after 4,124 miles still retained a viscosity of ~14.5 @ 100*C</p><p></p><p>This means while Motorcraft 5W-50 is no longer giving you the protection of a 50 grade, Amsoil is giving you a solid protection of a 40 grade lubricant. Amsoil will also be easier on cold starts, and promotes less cold start wear. </p><p></p><p>There is simply no comparison.</p></blockquote><p></p>
[QUOTE="UnleashedBeast, post: 10821643, member: 112023"] Amsoil 10W-40 AMO exceeds the minimal specifications of Motorcraft 5W-50. I've discussed this with two area reps from Ford. They both agreed there is no way they would ever void an engine warranty claim when a UOA confirmed the oil was superior to Motorcraft. Motorcraft has a virgin viscosity of ~20.0 @ 100*C. Amsoil has a virgin viscosity of ~14.6 @ 100*C. Motorcraft after ~2,000 miles has a viscosity of ~12.8 @ 100*C Amsoil after 4,124 miles still retained a viscosity of ~14.5 @ 100*C This means while Motorcraft 5W-50 is no longer giving you the protection of a 50 grade, Amsoil is giving you a solid protection of a 40 grade lubricant. Amsoil will also be easier on cold starts, and promotes less cold start wear. There is simply no comparison. [/QUOTE]
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2012-2013 Boss 302 Mustang
Something to consider when the oil change topic happens here
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