Ford Mustang Forum - View Single Post - Oil Change Thread
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post #16 of (permalink) Old 09-08-2013
trustyrusty436
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Joined: Apr 2012
Location: nashville
Posts: 308
 
Mine seems to get a little sluggish after 7k miles or so. So far I've tried Mobil 1, Pennzoil Ultra and now Castrol Edge. By my butt dyno the Ultra is better than the Mobil 1 and the Edge seems to be the slickest one yet. Day in and out it feels smoother and quicker.

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