# Readers ask: What Axles Do The Fuel Weight Go On A Tractor Trailer?

## Does fuel add weight to drives or steers?

Weighing The Truck To Determine Fuel Weight Distribution Take the weight added to the steer tires (700 pounds) and divide it by the total fuel weight added (800 pounds) and then multiply that times 100: 700/800 * 100 = 87.5% went to the steer tires, and 12.5% went to the drive axles (100% – 87.5% = 12.5%).

## How much weight can each axle on semi?

In addition to Bridge Formula weight limits, Federal law states that single axles are limited to 20,000 pounds, and axles spaced more than 40 inches and not more than 96 inches apart (tandem axles) are limited to 34,000 pounds. Gross vehicle weight is limited to 80,000 pounds (23 U.S.C. 127).

## How do you distribute weight on a tractor trailer?

You will affect weight distribution by:

1. Changing the weight distribution of the cargo along the length of the trailer, or moving the cargo around after the truck has been loaded.
2. Sliding your trailer tandems forward or backward will redistribute the weight mainly between your drive axles and trailer tandems.
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## What is the weight distribution on a semi trailer?

Be aware that there are two major axles under the truck’s bed, both of which are designed to handle 43 percent of the truck’s weight. The other 14 percent is distributed over the front axle, which supports the engine and the cab. Distribute most of the cargo weight between the two rear axles.

## How much weight does fuel add?

Depending on humidity and temperature, precise diesel fuel weights vary. Ordinarily, a general rule of thumb can be between 7.5 and 7.25 pounds per gallon. When you’re doing your calculations, the number you can safely plug-in would end up being approximately 8 pounds per gallon.

## How can I add more weight to my axle?

By sliding the trailer tandems forward, you will put more weight on the trailer tandems and take weight off the tractor’s drive axles. Conversely, by sliding the trailer tandems toward the rear of the trailer, you will take weight off the trailer tandems and put more weight onto the tractor’s drive axles.

## How do you calculate weight per axle?

Multiply the center of gravity distance times the weight to get the moment for each component and item. Add all of the moments and divide by the wheelbase to get the weight on the rear axle. Subtract the rear axle weight from the total weight to get the front axle weight.

## How much weight can a 2 axle trailer carry?

80,000 pounds gross vehicle weight. 20,000 pounds single axle weight. 34,000 pounds tandem axle weights.

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## What is the dot weight limit?

Federal law controls maximum gross vehicle weights and axle loads on the Interstate System. Federal limits are 80,000 pounds gross vehicle weight, 20,000 pounds on a single axle, and 34,000 pounds on a tandem axle group.

## What is legal weight of a tractor trailer?

Gross Weight Limit The max gross weight of a shipment with a tractor trailer combination is 80,000 lbs.

## What is the maximum weight allowed on a tractor steering axle?

The steering axle weight for a truck tractor is capped at 6,000 kg. When the interaxle spacing is less than the minimum specified in regulations, the combined axle weight for the combination is reduced by 500 kg for every 0.1 metre or portion thereof. This will also reduce the allowable GVW.

## How much weight can you have on your trailer axle?

In cases where the trailer axles are 10′ 2” apart each axle can weigh 20,000 pounds on the scales allowing for the trailer axles to weigh a total of 40,000 pounds compared to 34,000 pounds for closed tandem axles.

## What is the maximum weight on a tri axle trailer?

Regular Operations

Single Axle 20,000 lbs.
Tandem Axle 34,000 lbs. on Interstate highways 36,000 lbs. on non-Interstate highways
Tridem Axle 42,000 lbs.
Gross Weight 80,000 lbs. on Interstate highways 84,000 lbs. (6 or more axles) on non-Interstate highways

## What is the legal weight for a 53 foot trailer?

Legal weight and dimensions are: Refrigerated Trailers Max freight weight is 42,000 to 45,000 lbs.