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Old 05-15-2015, 10:21 PM   #1
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Average gasser fuel mileage

So I've got a 97 hr endeavor le gasser. Ford 460 f53 chassis 38ft tag axle. And I'm wanting everyone's opinion on the average fuel mileage. I've not had the chance to take a trip with it yet but I'm trying to get a estimate of the mpg. Thanks for your response.
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Old 05-15-2015, 10:34 PM   #2
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Old 05-15-2015, 11:22 PM   #3
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Debrey at what highway speed? I've heard people traveling at 60-65 for best mpg.
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Old 05-15-2015, 11:33 PM   #4
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Around 7, would be my guess.
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Old 05-15-2015, 11:46 PM   #5
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In our '98 Santara 35' with 460 and tag we got 6 to 7 at the most but we were towing a '95 Honda Odyssey on a dolly.
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Old 05-16-2015, 12:29 AM   #6
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We've gotten as low as 6.5 climbing a lot of grades, and as high as 10, on a long flat route, with a little tailwind. But for the most part we can count on 8mpg as a rule. I plan on any trip that it costs about .50 per mile when the gas is about $4 a gallon.
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Old 05-16-2015, 02:02 AM   #7
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If you see more than 7 I'd be surprised.
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Old 05-16-2015, 07:11 AM   #8
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32 ft allegro no toad 8.5 on highway at 65-70
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Old 05-16-2015, 07:16 AM   #9
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I'd plan on 6-7 for that first trip, then go from there.
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Old 05-16-2015, 07:24 AM   #10
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When we had a gasser, a '97 35' Bounder, we got 6.8 at best. With the dash A/C running, we were at or below 6 MPG. YMMV but plan on being on the low side of what you read on these forums.
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Old 05-16-2015, 07:26 AM   #11
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Almost forgot... The most efficient speed for the 460 is around 2400 RPM if I remember correctly. But someone with more knowledge may be able to correct me.
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Old 05-16-2015, 07:47 AM   #12
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7mpg running at 60-62mph pulling a Honda CRV
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Old 05-16-2015, 07:48 AM   #13
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I have a 96 HR vacationer, 454 multi-port inj. Auto/od , 32' no toad. At 65 mph, our first tank was 10 mpg! Second was 9.2! Third was 9.7! I remember when these MH's came out, and they were wind tunnel tested, for fuel milage, and i remembered that when i was looking for a MH. I remember the styling, and though at the time, looked like a guppy! But the style grew on me, and was i surprised when at the fuel island. For our whole trip, we averaged 9.4 mpg. The total mi. were just over 5000. The wind played a big part, and the mountains too. But, i was very pleased with the milage, and was expecting 7 to 8 mpg.
I think, it depends on how you drive, the wind, how heavy you are. With a tag, that tells me you are heavy, so like the others said, 6 to 7, 8 if your lucky! Best of luck!
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Old 05-16-2015, 08:05 AM   #14
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My old gas coach, a 454 with a carb and 3 speed was 7-7.5 and as low as 6.3 climbing the mountains. My newer ford V-10 is again 7-8 mpg. I plan all trips at 7mpg and $4 a gallon, that usually enough to cover fuel cost for driving and running the generator.
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