FX4 gear ratio
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Joined: Sep 2007
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From: Jamul, CA
Dumb question: are Canadian gallons the same size as US gallons?
If they are, then 16 mpg at 60 mph is lousy. My 2004 FX4 gets 18-20 at highway speeds easily. Two things to check are tire pressures, and your right foot. Those are the two most common causes of bad mileage.
I would expect winter mileage in snow country to be lower, too, especially if the miles driven are short trips where the engine spends more time warming up , than warmed up.
If they are, then 16 mpg at 60 mph is lousy. My 2004 FX4 gets 18-20 at highway speeds easily. Two things to check are tire pressures, and your right foot. Those are the two most common causes of bad mileage.
I would expect winter mileage in snow country to be lower, too, especially if the miles driven are short trips where the engine spends more time warming up , than warmed up.
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Joined: Nov 2006
Posts: 3,650
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From: Hillsboro, Oregon
Whatever the person who programs it wants it to do.
The trans is electronically controlled. They can firm up shifts, change shift points, make it kick down easier, lock the torque converter at different points, etc etc etc.
The trans is electronically controlled. They can firm up shifts, change shift points, make it kick down easier, lock the torque converter at different points, etc etc etc.
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Member
Joined: Mar 2010
Posts: 10
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From: brandon manitoba
One Imperial gallon (Canadian gallon) equals 1.2 US gallons. I should work it out in liters per 100 kilometers but gallons and miles seem better. I'm going on a short road trip Saturday so will check liters/100k
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Joined: Nov 2009
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From: Marietta GA
so how would you set it to save a little fuel but still have good performance?
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Joined: Nov 2006
Posts: 3,650
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From: Hillsboro, Oregon
I never asked for a mileage tune, I don't care about gas mileage honestly. lol
It is all in the tuning though. Talk to a tuner and tell him what kind of tunes you want, and he'll tell you what he can do for you.
He may make you a performance tune, and an economy tune, running different octanes or whatever else you want.
It is all in the tuning though. Talk to a tuner and tell him what kind of tunes you want, and he'll tell you what he can do for you.
He may make you a performance tune, and an economy tune, running different octanes or whatever else you want.
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Member
Joined: Mar 2010
Posts: 10
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From: brandon manitoba
Did a bit of a mileage test the other day on the Ranger. Travelled east to Winnipeg at 100 km/hr and west to Brandon at 90 km/hr. Ended up with 23.5 miles per US gallon. Not sure if I want to travel that slow all the time but at 90km the rpm dropped to 2000. Truck didn't seem to be sluggish on the one mole hill on the way home at that rpm.
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Joined: Feb 2005
Posts: 1,273
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From: Costa Mesa, CA
The SOHC 4.0 makes significantly more power at high rpm than the OHV 4.0 but it does not need high revs to make power. The horsepower curve on the graph for the SOHC is at or above the OHV all the way from 1000 rpm to red line.
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Joined: Aug 2009
Posts: 379
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From: Orillia, Ontario
silly rabbits...... 3.27:1 ratio, wrangler 31's, 4.0l ohv, 1994, manual.... rpm at 100km = 1800 get about 525km per tank and still would probably go another 25 easy, but didnt want to take my chances.
city driving on the other hand sucks ***. glad i do all highway, little to no city.
city driving on the other hand sucks ***. glad i do all highway, little to no city.
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