"It takes a certain amount of horse power to move something thru the air at a set speed. You can't change that by lowering the RPM of the engine. It will still need to make that power."
Finally, a physicist. Something is causing sufficient drag to cause your rig to need to burn that much fuel, like a dragging brake, or something is causing your rig to not burn fuel efficiently, like a vacuum leak. Or it's just that draggy, and there's nothing you can financially do to make it better, other than spending thousands to save hundreds. K&N in a big pharse, imho; their systems usually open the intake to hot air from behind the radiator, WAY BAD, and a bigger waste than any benefit from a maybe lesser restrictive, and possibly lesser protective, filter media.
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Cheers,
TonyMac
2006 Monaco Safari Cheetah 40PMT
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