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2011-2014 Mustangs
Engine/Tuning
Synthetic Oils
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<blockquote data-quote="Jimmysidecarr" data-source="post: 10783567" data-attributes="member: 11681"><p>I was really bugged when Ford first changed over to the 5W-20, just to save fines on CAFE.</p><p>I am still not a fan of the wide spread adoption of it's use. Especially with oils that are not a high quality FULL SYNTHETIC.</p><p></p><p>I must admit though, that this has become less of an issue when I'm helping RP customers selecting which products are correct for their vehicles.</p><p></p><p>I am almost certain the move to the more expensive synthetic blend by Ford/Motorcraft very shortly after the move to 5W-20, was solely because of the results of troubling durability testing outcomes with the then current 5W-20 conventional oils.</p><p></p><p>A search for "Scott Whitehead former Ford durability testing engineer" should open some eyes and minds to the realities of the 20 weight issue.</p></blockquote><p></p>
[QUOTE="Jimmysidecarr, post: 10783567, member: 11681"] I was really bugged when Ford first changed over to the 5W-20, just to save fines on CAFE. I am still not a fan of the wide spread adoption of it's use. Especially with oils that are not a high quality FULL SYNTHETIC. I must admit though, that this has become less of an issue when I'm helping RP customers selecting which products are correct for their vehicles. I am almost certain the move to the more expensive synthetic blend by Ford/Motorcraft very shortly after the move to 5W-20, was solely because of the results of troubling durability testing outcomes with the then current 5W-20 conventional oils. A search for "Scott Whitehead former Ford durability testing engineer" should open some eyes and minds to the realities of the 20 weight issue. [/QUOTE]
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