The impressive mileage figures newer cars and trucks get are a combination of factors, including aerodynamics, overdrive and computerized fuel injection.

Running the motor real slow can reduce consumption because it reduces the power lost to internal heat and friction. But unless the fuel metering is carefully controlled savings are limited by running too much fuel in order to be sure of running enough.

A better ratio in the rear will help but don't expect it to give a miracle cure.


1955 1st GMC Suburban | 1954 GMC 250 trailer puller project | 1954 GMC 250 Hydra-Matic | 1954 Chevy 3100 . 1947 Chevy COE | and more...
It's true. I really don't do anything but browse the Internet looking for trouble...