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Hersbird · 06-17-2016, 11:21 PM

The frontal aera limit is a bit general. I would figure the 60 sqft limit would be based on a towing a cargo container brick. Also that would be at interstate speeds. That 60 sqft limit is also on the f250 diesels. To be an accurate measure of the load on the drivetrain they would have to calculate a combination of speed, frontal aera and Cd.

Oh and what about headwind/tailwind? 60 sqft in a 40 mph headwind is different then 60 sqft with a tailwind. Dodge doesn't seem to list these restrictions on their 1500-3500 trucks. Seems like Ford just looking for an excuse to deny warranty claims.

My new 5000 pound camper has a frontal aera of 74 square feet not counting awnings and A/C unit so probably 76 Sqft. So a 1500 Ram is good to go but I guess I need a F-350 diesel in the Ford world.

Edit: I just saw the 60 sq ft Ford limit is f-150-f550 so I guess I need an f-650 if they even make it LOL!

06-17-2016, 11:21 PM	#40 (permalink)
Hersbird Master EcoModder Join Date: Feb 2014 Location: Missoula, MT Posts: 2,668 Dark Egg - '12 VW Touraeg Thanks: 305 Thanked 1,187 Times in 813 Posts	The frontal aera limit is a bit general. I would figure the 60 sqft limit would be based on a towing a cargo container brick. Also that would be at interstate speeds. That 60 sqft limit is also on the f250 diesels. To be an accurate measure of the load on the drivetrain they would have to calculate a combination of speed, frontal aera and Cd. Oh and what about headwind/tailwind? 60 sqft in a 40 mph headwind is different then 60 sqft with a tailwind. Dodge doesn't seem to list these restrictions on their 1500-3500 trucks. Seems like Ford just looking for an excuse to deny warranty claims. My new 5000 pound camper has a frontal aera of 74 square feet not counting awnings and A/C unit so probably 76 Sqft. So a 1500 Ram is good to go but I guess I need a F-350 diesel in the Ford world. Edit: I just saw the 60 sq ft Ford limit is f-150-f550 so I guess I need an f-650 if they even make it LOL! Last edited by Hersbird; 06-17-2016 at 11:33 PM..