Forum Discussion
Cummins12V98
Mar 13, 2018Explorer III
rbcamping wrote:
I'm going to put my 2 cents in here. On my Dodge, I put 19.5s on it and had a slight gain in fuel economy when driving down the highway and towing. I had a slight drop in economy around town, they are heavy, but have less rolling resistance. There are a lot of factors that go into economy and engine efficiency is a big part. Blanket statements will surely get you into trouble.....Just my experience.
Did you calculate your mileage based on actual miles clocked, not what the odo showed?
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