Posted 8/17/2008 20:00 (#437272 - in reply to #436960) Subject: RE: fuel milage loss from mud tires
Going from memory, and I'm assuming this applies to big trucks only, but it seems to me that the Cummins mileage information guide says 5-7% worse mileage going to a lug-type tire from ribbed. Something similar should apply for pickups as well with a harder hit for really aggressive mudders.