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Old 08-11-2018, 04:03 AM   #3 (permalink)
slowmover
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Join Date: Oct 2009
Location: Fort Worth, Texas
Posts: 2,442

2004 CTD - '04 DODGE RAM 2500 SLT
Team Cummins
90 day: 19.36 mpg (US)
Thanks: 1,422
Thanked 737 Times in 557 Posts
Records. (FUELLY app)

How long will you keep it?

How many miles will it cover in that interim?

What percent (of engine time) will be spent off-pavement?

Generally, the higher average mph, the better will be the average mpg. Learn to use those as tools to model driving behavior.

It’s all part of the total cost of ownership & operation. Use AAA or Edmunds to get a start. One needs to have all costs in view. You may not have depreciation costs, but your repairs and vehicle time out of service will be large).

Start there.
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