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Old 12-10-2017, 08:27 PM   #1
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Running generator while driving

Just curious to know how much does running the generator while driving effects fuel mileage and how many of you run your generator while traveling down the highway.

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Old 12-10-2017, 08:30 PM   #2
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We run ours all the time. Has no affect on mpg.

1998 36ft Country Coach Magna #5499
Gillig chassis with a Detroit series 40
2002 F250 CC 7.3 PSD
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Old 12-10-2017, 08:31 PM   #3
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Good to know thanks!!
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Old 12-10-2017, 08:32 PM   #4
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90% of the timed while driving..., burns about 1/2 gallon an hour
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Old 12-10-2017, 08:35 PM   #5
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We run ours as well.no issues at all(diesel, water cooled)
Had some issues when we ran the air cooled gennie on our former coach when traveling.... would over heat.
Foretravel with tag axle.
retired truckdriver with 5m miles
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Old 12-10-2017, 08:35 PM   #6
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We run it all the time while underway. No effect on gas mileage.

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Old 12-10-2017, 08:44 PM   #7
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Mine takes .7 to 1.4 gph, rather minor compared to the main engine.
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Old 12-10-2017, 08:44 PM   #8
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it might affect the range of your fuel tank... at 1/2 gallon/hour at full load.
10 hours driving = 5 gallons of gas used.
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Old 12-10-2017, 08:57 PM   #9
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we do, no problem.
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Old 12-10-2017, 09:15 PM   #10
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going to say over 90% of time it runs while we are driving.
I like to be comfortable, as in A/C
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Old 12-10-2017, 09:24 PM   #11
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Run mine as needed. It burns about 1/2 gallon per hour.
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Old 12-10-2017, 09:26 PM   #12
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I run mine, a Power Tech 7000 K diesel, when I need A/C, if it, (A/C), is not needed, it is off! It makes no difference going down the road or boondocking, it just runs the same! Purr's along at 1800 RPM's! Rail!

PS, I'm sure it affects the fuel mileage some, but not enough to notice!
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Old 12-10-2017, 09:38 PM   #13
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Running generator while driving

You know, Iím glad you asked this question as I have always wondered. When we 1st bought ours I never would run it while driving even when it was hot outside. Finally one summer it was 110 going towards Bend Or, and I just HAD to start the generator and BOTH AC units and we had no issues at all and had a pleasant trip. Now I donít hesitate to use it anytime (except when camping in close quarters).
1997 RexAir 32' Ford F53 Chassis, Banks system.
Spokane, WA
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Old 12-10-2017, 09:55 PM   #14
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Originally Posted by Mr_D View Post
Mine takes .7 to 1.4 gph, rather minor compared to the main engine.
Mine too, it has no effect on drive engine fuel mileage.

2000 Winnebago Ultimate Freedom USQ40JD, ISC 8.3 Cummins 350, Spartan MM Chassis. USA IN 1SG retired;Good Sam Life member,FMCA."We the people are the rightful masters of both the Congress and the Courts - not to overthrow the Constitution but to overthrow men who pervert the Constitution. "Abraham Lincoln"
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