My Dodge Ram 1500 Hemi averages 11-12 mpg, whether I'm towing or not!! But it is almost 4 years old and I have 11k miles on it. Mainly used for interstate towing and the FJ for intrastate trips. The FJ is 6 months old and has 1500 miles. Still haven't changed the oil yet.
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Jim
Sometime life gets in the way of living.......