Improvements on the worst gas guzzlers is a bigger pay-off than improvements on a fuel miser, so I applaud your efforts.
But... can you clarify something:
Quote:
Originally Posted by t vago
With this modified Durango, I took the family on a trip to Ohio and back, putting about 1700 miles on the frame over the course of a 5-day trip. Average fuel economy is apparently 25% over EPA estimate.
I will, of course, work to improve this even further. The Durango, being the new family hauler, will see a lot of city driving, and I expect the average fuel economy to drop somewhat.
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EPA for yours is 12 city/16hwy 13 combined.
For a long trip, I assume that is almost all hwy, so are you saying you average 20mpg (16 * 1.25)? Or are you saying you are at 25% over EPA combined, which puts you at about 16mpg?
The former, I would say is pretty good.
The latter... well, that puts you on par with similarly equipped, stock Tahoes from back then which makes me wonder if the effort was worth it.
For reference, we typically average 21+mpg on family trips in our '05 Tahoe, no hypermiling, just set cruise at 65mph and go. It's stock other than being lowered a little and 20" wheels.