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Old 07-14-2013, 12:08 PM   #1
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? about the dash fuel mpg reader.

The question is , when running gen. does the reader include the usage of gen. when calculates the mpg..

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Old 07-14-2013, 12:23 PM   #2
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I doubt it as the MPG computer would be reading from the engine computer. A rule of thumb is 1 Gallon per hour for the genny on top of your MPG.

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Old 07-14-2013, 12:32 PM   #3
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I believe the MPG on your dash info center is calculated fuel burn of the drive engine based on engine parameters is sees. In some cases, like I have seen with mine, you might show 0 MPG when going down hill and foot off the accelerator peddle. No bonus for free miles.
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Old 07-14-2013, 12:55 PM   #4
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Thanks, kinda what I thought since it has a separate fuel pickup for gen.. Went to beach last week computer said 11mpg ran gen. for ac, next fill up will compare reader to hand calculation.
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Old 07-14-2013, 04:13 PM   #5
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Location: Texas
Posts: 20
Just returned from 2,000 mile trip running gen first thousand miles. Computer on dash showed 8.8 miles per gallon for the trip. Generator fuel pump went out on the way back so did not use it. Computer still showed about 8.8-8.9 miles per gallon on the way back. Used my pencil and the odometer reading and calculated 7.0 miles per gallon.
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Old 07-15-2013, 03:23 PM   #6
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When I compute my actual MPG, I deduct one gallon for each hour the gen has run and .4 gal for each hour the Aqua Hot has run.
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Old 07-16-2013, 04:06 PM   #7
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nope it's doesnot compute gen fuel usage.

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