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Mustang Forums
2011-2014 Mustangs
Engine/Tuning
OIL Weight!!!
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<blockquote data-quote="blackpony95" data-source="post: 11153022" data-attributes="member: 69464"><p>That is because they produce more heat. Anyone that knows anything at all about thermal dynamics, knows that as oil heats up, it gets thinner. That goes for almost all liquids. Personally i would only run 5-20 in a new coyote with a stock long block under 50k. After that i would step up to 5-30, then to 10-40 at 150k. Ford designs and recommends these weights for a reason. They perform countless hours of r&d to develop products that work. Now if you step up to say a blower, or turbo then i would suggest 10-30. Oil coolers will be your best friend with blown applications.</p></blockquote><p></p>
[QUOTE="blackpony95, post: 11153022, member: 69464"] That is because they produce more heat. Anyone that knows anything at all about thermal dynamics, knows that as oil heats up, it gets thinner. That goes for almost all liquids. Personally i would only run 5-20 in a new coyote with a stock long block under 50k. After that i would step up to 5-30, then to 10-40 at 150k. Ford designs and recommends these weights for a reason. They perform countless hours of r&d to develop products that work. Now if you step up to say a blower, or turbo then i would suggest 10-30. Oil coolers will be your best friend with blown applications. [/QUOTE]
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OIL Weight!!!
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