Max WEIGHT- Is It 79,200 + 800 Diesel= 80,000

Topic 8248 | Page 1

Page 1 of 1
Scott M's Comment
member avatar

Newby. Have not yet got CDL. But in research on this site on axle weight limits. Is 79,200 lb max? Add diesel 100 gal x 8 lb = 800lb. 79200 + 800= 80,000 lb. . These numbers from another thread Front. 12000 Middle. 34000 Rear. 34000 So if add 800 lb diesel you are overweight at 80,800? . Love this site. Learning a lot. Weighing if I want to be a trucker after working 26 years as a Planner in Aerospace. Am taking Brett's Cdl class. Tough!


Commercial Driver's License (CDL)

A CDL is required to drive any of the following vehicles:

  • Any combination of vehicles with a gross combined weight rating (GCWR) of 26,001 or more pounds, providing the gross vehicle weight rating (GVWR) of the vehicle being towed is in excess of 10,000 pounds.
  • Any single vehicle with a GVWR of 26,001 or more pounds, or any such vehicle towing another not in excess of 10,000 pounds.
  • Any vehicle, regardless of size, designed to transport 16 or more persons, including the driver.
  • Any vehicle required by federal regulations to be placarded while transporting hazardous materials.
Robert B. (The Dragon) ye's Comment
member avatar

Good question. I "think" tractor GVWR is measured as wet weight which includes a full load of fuel but if you're at you're max 80k and add fuel you'll be over. I've seen guys say that some weigh stations will let slight overage slide but I wouldn't want to risk it.


Gross Vehicle Weight Rating

GVWR is the maximum operating weight of a vehicle as specified by the manufacturer, minus any trailers.

Brett Aquila's Comment
member avatar

Jetguy, they take the weight of your truck as it is rolling down the highway, fuel and all. Axle weight limits are generally 12,000 on the steer axle and 34,000 on tandem axles but there are a number of states with exceptions. For instance, a number of states allow 20,000 on the steer axle. But pay close attention because you are ultimately limited by the load limits of the truck itself. If the suspension isn't rated to handle 20,000 or the tires themselves have a load limit of less than 10,000 pounds each then you can only go up to the weight you equipment is rated for.


Tandem Axles

A set of axles spaced close together, legally defined as more than 40 and less than 96 inches apart by the USDOT. Drivers tend to refer to the tandem axles on their trailer as just "tandems". You might hear a driver say, "I'm 400 pounds overweight on my tandems", referring to his trailer tandems, not his tractor tandems. Tractor tandems are generally just referred to as "drives" which is short for "drive axles".

Ray F. (aka. Mongo)'s Comment
member avatar

Listen to Brett. About the only exception that I know is they can allow you to go up to 80,400 total gvwr. But only if your truck has an APU. But even then your axle weights have to be legal. I personally don't like running that heavy so any time I am pushing 80K I sweat it.


Gross Vehicle Weight Rating

GVWR is the maximum operating weight of a vehicle as specified by the manufacturer, minus any trailers.


Auxiliary Power Unit

On tractor trailers, and APU is a small diesel engine that powers a heat and air conditioning unit while charging the truck's main batteries at the same time. This allows the driver to remain comfortable in the cab and have access to electric power without running the main truck engine.

Having an APU helps save money in fuel costs and saves wear and tear on the main engine, though they tend to be expensive to install and maintain. Therefore only a very small percentage of the trucks on the road today come equipped with an APU.

Page 1 of 1

New Reply:

New! Check out our help videos for a better understanding of our forum features

Links On TruckingTruth

example: TruckingTruth Homepage

Upload New Photo
Please enter a caption of one sentence or less:

Click on any of the buttons below to insert a link to that section of TruckingTruth:

Getting Started In Trucking High Road Training Program Company-Sponsored Training Programs Apply For Company-Sponsored Training Truck Driver's Career Guide Choosing A School Choosing A Company Truck Driving Schools Truck Driving Jobs Apply For Truck Driving Jobs DOT Physical Drug Testing Items To Pack Pre-Hire Letters CDL Practice Tests Trucking Company Reviews Brett's Book Leasing A Truck Pre-Trip Inspection Learn The Logbook Rules Sleep Apnea

0 characters so far - 5,500 maximum allowed.
Submit Preview



Join Us!

We have an awesome set of tools that will help you understand the trucking industry and prepare for a great start to your trucking career. Not only that, but everything we offer here at TruckingTruth is 100% free - no strings attached! Sign up now and get instant access to our member's section:
High Road Training Program Logo
  • The High Road Training Program
  • The High Road Article Series
  • The Friendliest Trucker's Forum Ever!
  • Email Updates When New Articles Are Posted

Apply For Paid CDL Training Through TruckingTruth

Did you know you can fill out one quick form here on TruckingTruth and apply to several companies at once for paid CDL training? Seriously! The application only takes one minute. You will speak with recruiters today. There is no obligation whatsoever. Learn more and apply here:

Apply For Paid CDL Training

About Us

TruckingTruth was founded by Brett Aquila (that's me!), a 15 year truck driving veteran, in January 2007. After 15 years on the road I wanted to help people understand the trucking industry and everything that came with the career and lifestyle of an over the road trucker. We'll help you make the right choices and prepare for a great start to your trucking career.

Read More

Becoming A Truck Driver

Becoming A Truck Driver is a dream we've all pondered at some point in our lives. We've all wondered if the adventure and challenges of life on the open road would suit us better than the ordinary day to day lives we've always known. At TruckingTruth we'll help you decide if trucking is right for you and help you get your career off to a great start.

Learn More