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Open Roads Forum  >  Travel Trailers  >  General Q&A

 > Trying to figure out what trailers I can tow

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MFL

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Posted: 04/14/22 12:32pm Link  |  Quote  |  Print  |  Notify Moderator

Gdetrailer wrote: "Truck has 35 gallon fuel tank and at roughly 8 lbs per gallon that is 280 lbs."

A bit of miscalculation here! Water weighs about 8.5 lbs per gal. A gal of gasoline 6.3 lbs.





Gdetrailer

PA

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Posted: 04/14/22 12:44pm Link  |  Quote  |  Print  |  Notify Moderator

MFL wrote:

Boomerweps wrote: "Easiest no cost weigh (pun intended) to get the factory built curb weight is subtract the factory Load Capacity from the GVWR, looking at two door frame stickers."

^^This....When vehicle is built, each vehicle is weighed, ready to ship. Using this weight, subtracting from GVWR is that exact trucks payload. So above example from Boomerweps is correct.

OP should choose the camper he wants, then buy the proper truck to tow it.

Jerry


You obviously did not read my examples above.

PA does list the curb weight on the registration card, not all states do this.

My examples above shows there is a discrepancy of 458 lbs between the curb weight reported on my official registration and the yellow loading sticker.

The weight listed on my PA registration IS the scaled shipping weight of the vehicle as it left the factory. The factory does not include a full tank of fuel, might be 1 or 2 gallons but that is it.

That unladen weight clearly does not include a FULL TANK OF FUEL.

The yellow sticker does indeed take into account a FULL TANK OF FUEL PLUS DRIVER WEIGHT OF 150 lbs.

The simple thing is to take the yellow sticker weight and subtract your passengers and additional cargo you add to the vehicle. to get your final available cargo weight for the trailer tongue.

Very cut and dry..

The old ways of doing things don't die easily..

I get it, folks mistrust that yellow sticker and by trying to manually calculate it so it looks like you have more cargo capacity than what the yellow sticker reports..

Gdetrailer

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Posted: 04/14/22 01:07pm Link  |  Quote  |  Print  |  Notify Moderator

MFL wrote:

Gdetrailer wrote: "Truck has 35 gallon fuel tank and at roughly 8 lbs per gallon that is 280 lbs."

A bit of miscalculation here! Water weighs about 8.5 lbs per gal. A gal of gasoline 6.3 lbs.


I DID write ROUGHLY as in an approximation, rough estimate, general weight.

In the realm of thousands of pounds of cargo capacity even missing 100 lbs in the calculation should not make enough of a difference and being this petty about is rather silly.

I get it, folks want to tow their McMansions with the smallest cheapest tow vehicle possible.

The reality is you no longer HAVE to get the curb weight, subtract it from the GVWR then subtract the fuel, the driver.. The YELLOW sticker has done that work for you already.

Even if you took the vehicle to the scales you will end up with some differences in curb weight since you will need to either have a full tank of fuel or an empty tank of fuel..

The work has been done, the yellow sticker states to not exceed the number on it, don't exceed that number and all will be fine.. Why make folks jump through hoops when all the work has been done?

This yellow sticker has been in use since around 2004 and up and so far, when I have manually done the calculations it is right on the money within a few lbs.

toedtoes

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Posted: 04/14/22 01:24pm Link  |  Quote  |  Print  |  Notify Moderator

The way I see it, the 150lbs for "driver" is minimal. If you are so close to the payload of the vehicle that adding that 150lbs to the numbers puts you over payload, then you need a bigger truck.

For that reason, I would calculate payload by subtracting the full weight of the driver along with everything else.

Fuel is included in the curb weight, along with all other operational fluids.

Payload - weight of driver and all passengers (pets included) - weight of everything put in or on the vehicle - 15 percent of the trailer's GVWR (or actual loaded weight). If less than zero, you have too much trailer for the truck.

Truck towing capacity - trailer GVWR (or actual loaded weight). If less than zero, you have too much trailer for the truck. If you will be driving long distances and/or hilly/mountainous terrain, it's good to keep the trailer weight to 80 percent or less of the truck's towing capacity (some will go right to the limit, but they are either very experienced towers OR idiots.


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Grit dog

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Posted: 04/14/22 01:55pm Link  |  Quote  |  Print  |  Notify Moderator

bgum wrote:

Who weights 150 pounds?


Who cares...new RV season, new weight cop season apparently...


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valhalla360

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Posted: 04/14/22 02:10pm Link  |  Quote  |  Print  |  Notify Moderator

Gdetrailer wrote:

bgum wrote:

Who weights 150 pounds?


"ASSUME" 150 lbs was considered and "average" adult.. For testing purposes to get some sort of available cargo weight on must assume some hypothetical numbers like how much and adult may weight.. Since everyone has a different weight there had to be some guestimate and if you think about it, unless you weight 400+ lbs it won't make a big impact on the final numbers..


A family of 4 with 2 teenage boys can easily push 800lb. That's almost half the 1700lb payload used up before hooking up or putting a single piece of firewood in the bed.

150lb is a number that has been used for years and they don't want to increase it because it makes it look like they payload has gone down.


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Grit dog

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Posted: 04/14/22 02:21pm Link  |  Quote  |  Print  |  Notify Moderator

Y'all realize, basically the same cast of ding dongs year after year has tanked the OP's thread by barely the start of the 2nd page, arguing the semantics of what minor factors may or may not be included in a particular rating....as if they have any measurable real world significance.
Good job guys! LOL

bgum

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Posted: 04/14/22 03:49pm Link  |  Quote  |  Print  |  Notify Moderator

Thank you valhalla360. Many women are or exceed 150 pounds. Never ask and they don't volunteer that information. Men and teen age boys commonly exceed that 150 pound figure. You are right that 4 pack of people is closer to 800 pounds than 600.

Bob/Olallawa

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Posted: 04/14/22 06:31pm Link  |  Quote  |  Print  |  Notify Moderator

At what point does the fuel weight change? 10 miles from fill up? common sense has to come in somewhere


Welcome to my home, that door you just broke down was there for your protection not mine.

ken56

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Posted: 04/14/22 06:33pm Link  |  Quote  |  Print  |  Notify Moderator

I spent the last 12 years out of my 32 years working at GM at the Flint Assembly plant and I never did see where those trucks were weighed and stickered. I was on skilled trades and was everywhere in that plant. No idea how they figured out the weight of those trucks with their different options as they rolled off the line. Maybe I just didn't pay attention.....

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