Found another post that answers my question pretty well on where to start looking for improving fuel efficiency:Originally Posted by SeattleSquatch
MPG seems low by comparison (especially around town; relatively flat but lots of stoplights and idle time). Open to ideas on where to look or how to start improving gas mileage?!?!
https://www.toyotavantech.com/forum/...should-i-start
I have had my recent van for a little over 7k miles now and am consistently averaging 16-18mpg in town with it being a mix of city and highway. I take it on 300+ mile climbing trips at least every other week and during those times I will get around 20-22mpg. I should note that I seriously try to drive 60mph max because it gives me the best mileage and ride comfort.
My van is a 1988 5 speed manual 4x4 with Maxxis Bighorns, a country homes camper poptop in addition to a roof rack with solar panel and yakima cargo basket on top. It also has A/C but I have yet to use it enough to see how bad it dings mpg.
In the past I had an 88 auto 4x4 on General Grabbers with remanned engine and rebuilt tranny and it ran like garbage and only got 12-15 mpg.
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