Fuel milage towing
04-28-2005, 10:57 PM
#31
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94 3/4 4x4 4.10 gears auto with mystery switch, 300hp bosch injectors, timed at 17 towing 26' terry 5th wheel rolling 62-65 getting 15 mpg not bad with those gears i thought. I am going to do some exhaust work and put on a bhaf trying to get 17mpg What do you think can i get close to 17mpg? Bob
04-28-2005, 11:52 PM
#32
Towing the 24ft enclosed, approx weight 8500 loaded I usually get 11mpg. I tow through some pretty ugly terrain to get to the track though. Usually maintain speed limit except for a couple passes that I have to keep it out of OD.
04-30-2005, 10:18 AM
#38
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I posted this on a different thread under the 3rd gen., no engine and drivetrain.
Got back last night, the run was 1006 miles, used 83.3 gals. of diesel, mileage was 12.07 mpg. Usual hwy speed was around 68 mph, gross wt. around 26k. That is better than I usually get, but it was a low profile load and almost non stop, all hwy, no stop and go. Usual mileage is 10.5 to 11 mpg.
I tow for a living, these are the usual averages for me.
Got back last night, the run was 1006 miles, used 83.3 gals. of diesel, mileage was 12.07 mpg. Usual hwy speed was around 68 mph, gross wt. around 26k. That is better than I usually get, but it was a low profile load and almost non stop, all hwy, no stop and go. Usual mileage is 10.5 to 11 mpg.
I tow for a living, these are the usual averages for me.
05-02-2005, 01:31 AM
#40
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man, i just got in from a small tow. 24' enclosed that weighs about 5k unloaded. I just purchased my CTD and was hoping for better fuel mileage when towing, guess i was just too optimistic when i got 22mpg unloaded.....
when should i not/tow in overdrive?
Kelly
when should i not/tow in overdrive?
Kelly
05-02-2005, 04:47 PM
#41
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Be careful
"when should i not/tow in overdrive?"
TEXWS6, with your stock automatic, be very careful not to load it at low RPM. It will have low line pressure at low RPM and can't transmit much torque without slipping. Your engine can produce too much torque at 1500 RPM for the transmission to handle. When you are loaded heavy, remember to shift out of OD or down to 2nd if you must have power for hill climbing or accelleration and you see your RPMs are below 1750-1800. A stock transmission will last a long time if only owners would follow this rule.
TEXWS6, with your stock automatic, be very careful not to load it at low RPM. It will have low line pressure at low RPM and can't transmit much torque without slipping. Your engine can produce too much torque at 1500 RPM for the transmission to handle. When you are loaded heavy, remember to shift out of OD or down to 2nd if you must have power for hill climbing or accelleration and you see your RPMs are below 1750-1800. A stock transmission will last a long time if only owners would follow this rule.
05-02-2005, 10:26 PM
#43
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"keeping it above 1800rpm puts me in a bind"
That's not what I said. You can run in OD on flat roads with or without a load at steady speeds at 1500 RPM and not hurt the tranny. You are not using much power. The danger comes when you want to CLIMB or ACCELLERATE (use the full torque potential of the engine) with a load at 1500 RPM. The tranny can't take it, so shift down and provide a higher RPM for higher line pressure in the tranny. When you're finished accellerating or climbing, shift up and run at a lower RPM. Running unloaded, you don't often need full power so no need to shift down.
That's not what I said. You can run in OD on flat roads with or without a load at steady speeds at 1500 RPM and not hurt the tranny. You are not using much power. The danger comes when you want to CLIMB or ACCELLERATE (use the full torque potential of the engine) with a load at 1500 RPM. The tranny can't take it, so shift down and provide a higher RPM for higher line pressure in the tranny. When you're finished accellerating or climbing, shift up and run at a lower RPM. Running unloaded, you don't often need full power so no need to shift down.
05-03-2005, 09:01 PM
#45
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I get approximately 11 mpg pulling a 34' 5th-wheel camper at an average speed of approximately 70 mph. My GVW is about 21,000 lbs. Of course my mpg varies on a daily basis depending on the terrain/hills, wind resistance and speed. But by the end of each trip the average mpg is usually just over 11. To get the best mpg it is important to slow down (reduce rpm's) when pulling long, steep hills or encountering a lot of head wind. Under those conditions I do not use the cruise control to avoid having the tranny downshifting too early and making the rpm's too high to be fuel efficient.