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DPF trucks burn much cleaner than the soot-belching trucks. I'd compare it to a carbureted car and EFI with catalytic conversion car. You smell when you're behind an old truck or car.
And no credible evidence was posted to support the mileage and other claims. I wouldn't be surprised if he has his pickup "chipped" to smoke.
Last edited by sgtlethargic; 10-29-2020 at 11:17 PM..
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