Fuel mileage when load is added?

2000 Chevy S-10 pickup gets around 21 miles per gallon.
Add a 12 foot enclosed trailer. How will that affect the gas mileage?
1000 pounds of gear in the trailer. How will that affect gas mileage?

Any crude rough estimate caculator or formula?
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nickg5Asked:
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tailoreddigitalConnect With a Mentor Commented:
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Michael-BestConnect With a Mentor Commented:
"Any crude rough estimate caculator or formula?"

You can only do test drives to compare and get your own specific results as there are to many variables to consider....

Depends on the trailers dimensions and tyres and alot more for any "rough estimate caculator or formula" to be anything more than a guess.

Head wind and driving speed will have the most impact depending on the dimensions.
Road conditions will have the most impact depending on the tyres.
Load conditions will have the most impact depending on the driving conditions (road / traffic / slopes vs downhill / weather / etc.

Bet any resulted "rough estimate caculator or formula numbers" on a lottery for better luck is my suggestion...
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nickg5Author Commented:
If a 17 foot Penske truck loaded, gets 9-10 miles per gallon, then I was trying to debate whether to rent the truck, or buy a similar truck, or buy an enclosed trailer.
I know the pickup gets around 21 and which way I go I'd need the mileage to be 10 miles per gallon, minimum.
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nickg5Author Commented:
If a 17 foot Penske truck loaded, gets 9-10 miles per gallon, then I was trying to debate whether to rent the truck, or buy a similar truck, or buy an enclosed trailer.
I know the pickup gets around 21 and which way I go I'd need the mileage to be 10 miles per gallon, minimum.

As far as weather, wind, road conditions assume average.

As mentioned it's a 12 foot cargo trailer. 12x6x6 or maybe 12x7x6.
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Michael-BestCommented:
"I was trying to debate whether to rent the truck, or buy a similar truck, or buy an enclosed trailer."


Renting vs buying vs an enclosed trailer?

Only your own personal needs can decide that.
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nickg5Author Commented:
Personal need is not a factor.
If buying an enclosed trailer and pulling it with my existing pickup truck will get less than 10 miles per gallon, I might as well just rent a truck for the job since the rental gets 10 miles per gallon. Fuel mileage is 100% the subject matter.
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nickg5Author Commented:
Estimate the drop in gas mileage. For light loads (under 2,500 pounds) subtract 10 to 15 percent from your normal gas mileage. For medium loads, subtract 15 to 25 percent, and for heavy trailer loads of 5,000 or more subtract 25 to 35 percent.

Read more: How to Calculate Gas Mileage When Towing a Trailer | eHow http://www.ehow.com/how_5968433_calculate-gas-mileage-towing-trailer.html#ixzz2VGNROXO8

....this seems to be a good way to estimate..........
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