5 gallons of 90 wt.
A Farmall M tractor weighs just over 5000 lbs.
type of oil for transmission
On a Farmall B the gearbox holds 1 1/2 gallons of 40w oil.
It depends on the tractor.
Depends upon the condition. Could be a couple hundred or a couple thousand dollars.
I think they hold around 53 litres for power shuttle transmission
30
There are various sizes of tractor buckets and each can hold different loads. For a 60 inch tractor bucket, it can hold 1/3 cubic yard.
how much oil do i use when changing my oil in my bolen tractor 5.0 hp
As much as the fuel tank can hold
It depends on the transmission, which you did not list.
They varied by brand and size, but most that I've seen prices for were in the $500 to $900 price range. It seems to me that a Farmall F-20 for instance was $695 if I remember right.