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Old 04-17-2015, 07:06 PM   #1
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Join Date: Mar 2015
Location: Riverview
Posts: 283
Tuning versus default options

so as I was chatting with the crew at 5star tuning they disclosed that the e450 based RVs had only one tune that is better suited for the load characteristics that having the box that we call a house on it. And given the load it is almost always as if it is in towing mode due to the increased weights. So has anyone tried to use the Tow/haul button for normal driving to see if it cures many of the weird shifting and rev conditions?

Carl & Dawn
2015 Greyhawk 31FS
2015 Ford Transit Connect (our TOAD on a DEMCO Dolly)
DW, DSx2, DDx2 Catx2 Dog
Tampa Bay Area of FL
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Old 04-17-2015, 09:47 PM   #2
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Location: Port Orchard
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I OK with the E450 currently set shift points. The only time I really feel a need for a more aggressive shift is on the downhill. I'm a fan of taking it easy on the service brakes so I use tow/haul mode on the downhill for earlier downshifting and compression braking. Otherwise I'm fine with the way it shifts.

2015 Greyhawk 29MV
Honda CRV toad with Blue Ox baseplate
Ready Brute Elite towbar with braking system
Hughes autoformer
TST 507 Flowthru TPMS
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Old 04-18-2015, 07:05 AM   #3
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Location: Beautiful West-Central Florida
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I have the 5 Star installed and am satisfied although not sure it was worth the money. It definitely (in my case) solved the irritating issue of extreme downshifting on even the slightest hill that the standard tune had (tow/haul mode included). It seems to shift in a more reasonable manner and RPMs now. It may have added a skosh (sp?) more power, but it had no measurable effect on gas mileage.
2012 Greyhawk 31DS
2012 Ford Edge Toad

If I had anything better to do I would be doing it :)
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Old 05-20-2015, 09:51 PM   #4
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Don't have a MH yet but alot of the folks running big fifth wheels say it works best to run in tow/haul mode all the time.
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Old 05-21-2015, 08:18 PM   #5
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Location: Ottawa
Posts: 346
I run tow/haul all the time and it does not fix the downshifting issue. I ordered the 5 Star tune but wont get a chance to use till Oct.

2012 Greyhawk 31 FK
Flat towing a 2008 Miata.
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