Thread: MPG calculators
View Single Post
Old 06-30-2011, 05:24 PM   #7 (permalink)
TheEnemy
The road not so traveled
 
TheEnemy's Avatar
 
Join Date: Jan 2010
Location: New Mexico
Posts: 680

The Truck - '99 Nissan Frontier xe
90 day: 25.74 mpg (US)

The Ugly Duck - '84 Jeep CJ7 Rock crawler
Thanks: 18
Thanked 66 Times in 57 Posts
Your talking about the Ford Ranchero?

Does it have an electric, clutch or direct driven flex fan?

Punching my best guess into the calculator I come up with a max of 22mpg between 35 and 45 mph. That is assuming you have a clutch fan, and a standard transmission.

weight 3500 lbs
crr .008 (a bit low I think)
Cd .45 (typical for a truck)
frontal area 20ft^2
Engine efficiency .20
Drivetrain efficiuency .85
Paracitic overhead 5000 (those fans really pull power)
  Reply With Quote