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post #6 of (permalink) Old 05-17-2016, 07:18:PM
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Originally Posted by VanMan36 View Post
There are two big hills on my way home from work though (on a highway where the speed limit is 70), and the van used to jump down three gears and send the RPMs to 4,000+ with the cruise on to pull them at speed. Today, post oil change, it only dropped two gears and stayed just over 3,000 RPMS, also with the cruise on.
That might could be environmental factors, or the difference between a wet and dry air filter. In thin warm air, my 3.5 runs better than in humid air.

Just making suggestions... maybe it is wonder oil. I've never tried full synthetic.

Transit 250 Cargo MR LWB 3.5L w/3.31

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