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Old 06-26-2017, 07:33 AM   #21
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We get about 7-7.2 mpg and use tow haul and cruise flat towing a Corolla. We have a TPMS and though tires are set cold from 106 -112 while driving they run 119-126 depending. On outside temps. Worst we got was 6.2 and that was going up and down in Rockies no cruise of course then.
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Old 06-26-2017, 09:20 PM   #22
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I track every fill up. From Chicago we've run to San Diego, Boston and Galveston, pulling a Sonic. More than terrain, I find that wind makes the greatest impact. I've seen as high as 7.99 MPG with the wind behind us and as low as 6.07 fighting a strong headwind. 22 data points, about 50 gallons per sample, average 7.21. I can pretty much predict my mileage after I look at a weather map.

Under tow, the Sonic has a 65 MPH speed limit on it, so I set the cruise at 1 or 2 below that and let her run. My tires are at 83 psi cold. Going up mountains I try to stay under 4000 RPM and let the speed fall where it may.
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Old 06-26-2017, 09:25 PM   #23
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TLAK, ty, are you running the gen? thought of raising air pressure a little?
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Old 06-26-2017, 09:45 PM   #24
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I rarely run the gen underway. My San Diego and Galveston trips were snowbirds. Up here in Chicago, the AC keeps up with just 2 people in the cab and the vents pointed at you. If I were down south or had passengers in the back I'd run it all the time.

83 psi is what the engineer's say on the sticker. I've run them as high as 100 cold in the past but the ride and handling were just terrible. It is a much more comfortable drive at the sticker pressure.
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Old 06-26-2017, 09:47 PM   #25
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thx, i figure 100 would loosen the fillings in your teeth.
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Old 06-27-2017, 02:42 PM   #26
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Quote:
Originally Posted by Kentucky Bob View Post
Rechecked math over & pver , same results. Anyone else out there with a v10 with the new 6 speed transmission who can tell me their mpg with towing a small car like mine ?
Same engine and trans and average 8 to 8.5 with a Suzuki in toe.
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Old 06-27-2017, 04:14 PM   #27
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My FR3 is in a local shop to diagnose the poor mpg. My old Hurricane was at my business last night & the catalyrltic converter was cut off by a thief . I will need to replace it at a cost of about $ 2,000 before I can sell it.

I would love to get the mpg you are getting
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Old 06-28-2017, 10:20 AM   #28
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FR3 28DS

I have a 2016 FR3 28DS. I drove over 8000 miles a month after I purchased it. I did not tow a vehicle. I rent when ever I stay any where. When I started out I left the cruse on and was getting under 8 MPG. On a hilly road I was getting 6 MPG. As I ventured further west I found that as soon as I hit any sort of hill the transmission would down shift and crank up the RPMs. I ended up leaving the cruse off if I was in hills or going over the rookies and cascades. By I returned home from Seattle to Florida I was getting almost 9 MPG.
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Old 06-28-2017, 10:41 AM   #29
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We have a 2014 30DS. We re currently on a trip driving over flatlands and mountain passes. We're towing a CRV, use cruise mostly on flat roads but know how to work it to keep it from downshifting too much. I do turn it off when steep climbing. So far we're averaging 8.6 mpg going no faster than 65 so as not to harm the CRV. Tires inflated at 86 psi.
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Old 06-29-2017, 07:04 AM   #30
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FR3 32DS Poor MPG

I have a 2016 Georgetown GT3. I am on a 3 week trip. We keep enough water in the tanks to go to the restroom on the road. I tow an old Honda Accord with less than half a tank of gas. We use the generator as needed. My last two fill ups yielded 7.3 and 6.8 mpg. I generally drive around 65 mph using cruise when practical.
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