Tonneaus
Our new truck doesn't have a tonneau cover for the bed, and we're thinking that it would probably improve aerodynamic performance (and mileage) if it did. Does anyone have experience with adding one ...
Forum Discussion
snowedin wrote:
One of the recent magazines had a long term test of the Silverado pickup and added a tonneau cover then concluded that it increased gas mileage by 6%. It may have been Motor Trend. Saw the Myth Busters test and believe that they only drove 45 mph so that was inconclusive for me. On low speed driving the cover would provide negligeable improvement in gas mileage. I have had the Access Lorado roll covers on several trucks and found them to be a top notch deal but have no way of determining if they increase the gas mileage or not.
Test two by the Myth busters was completed at 55 MPH. Goggle it.
Would love to see link to the test the "proved" a 6% increase.
