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Old February 5th, 2017, 07:08   #4
pdq import repair
Veteran Member
Join Date: Nov 2016
Location: idaho
Fuel Economy: 38.5

Back in the day, I had a nearly new 4runner with a 3.0 engine, and my brother in law had a nearly new Bronco with the biggest engine they had, 400CI, I think. I got consistently 16, 17,or 18mpg tank after tank after tank. He got 20-22 mpg consistently, I witnessed it at the pump more than once.

That big engine rarely saw 3000 rpm and just ran along at low speeds sipping fuel. Hell he would almost match my 4 runner pulling a travel trailer with it. 14-15 mpg.

I don't know emmisions wise, but my thinking is less gas burned per mile should pollute less. Both vehicles met the standards of the day and still do. Yes we both still have them with over 250K on each and they can pass the sniff tests.

funny thing physics.
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