I am glad to see the results of this test. My engine ran pretty smooth to begin with but I got my hands on 2 bottles of rev-x and figured what the heck. I did an oil change switched to Rotella T6 and dumped in the rev-x. I did not really notice a difference but then again I don't normally check fuel mileage.
This is good to know. I will be using Rev-x at every oil change now!
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2004 F250 6.0L S-Cab Long Bed, 4" exhaust, Edge Evo, Blue Spring, EGR Delete, PMM Coolant filter, Smoked LED lights in rear, Smoked cab lights, 3" Lift , 18" DC-2's with 275/70R18 Nitto Terra Grapplers, Warn Manual Hubs, Rhino Liner
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