Forum Discussion
HMS_Beagle
Dec 30, 2018Explorer
There are several documented cases of the Ford 6.7 and other newer diesels going over 800K miles. Materials science just keeps making the engine fundamentals better.
I'm ambivalent about removing the smog controls - I can't do it where I live, but I'm not sure I'd do it if I could. There are hundreds of reports of "deleting" the smog equipment, the documented improvement in mileage is less than 1 mpg (on the 6.7, at least). And it is kind of nice to have no smoke, no soot, no stink, wipe your finger in the exhaust pipe and it comes out clean. The only real advantage of deleting the smog is a hope of avoiding a repair cost in the future.
I'm ambivalent about removing the smog controls - I can't do it where I live, but I'm not sure I'd do it if I could. There are hundreds of reports of "deleting" the smog equipment, the documented improvement in mileage is less than 1 mpg (on the 6.7, at least). And it is kind of nice to have no smoke, no soot, no stink, wipe your finger in the exhaust pipe and it comes out clean. The only real advantage of deleting the smog is a hope of avoiding a repair cost in the future.
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