Why are some vehicles tires filled with water? What is the reason behind it. Is it done for all the vehicles or only heavy vehicles?

  • What examples have you found?
    – Solar Mike
    Jul 16, 2018 at 11:53
  • In tractors I have found them
    – user40021
    Jul 16, 2018 at 11:54

1 Answer 1


This is common practice in the agricultural industry ( I worked as a agricultural contract driver) as it is an easy and cheap way of adding weight to the tractor when needed.

It works as the relatively low rotating speed of the wheels ( tends to be the rear mostly) means the water stays in the bottom part of the wheel.

Edit: the extra weight can also be to help balance the tractor if you are using a front loader for example.

  • Why do we need to add weight to tractor
    – user40021
    Jul 16, 2018 at 16:03
  • @user40021 to push through mud.
    – Ben
    Jul 16, 2018 at 16:21
  • @user40021 - As Ben said, which also means more traction. Jul 16, 2018 at 16:41
  • Instead of adding weight in the rear wheels can we add weight on the rear side of vehicle and produce same traction??
    – user40021
    Jul 26, 2018 at 11:37
  • Yes, weight can be used - why do you think trailers have to be loaded so carefully...
    – Solar Mike
    Jul 26, 2018 at 11:39

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.