Dexron II is the recommended fluid for this model.
That depends on the year, make,model, etc. Some vehicles do use ATF as the power steering fluid, others do not.That depends on the year, make,model, etc. Some vehicles do use ATF as the power steering fluid, others do not.
If it is the Toyosha diesel model, use a trans/hydraulic fluid.
There is no 2003 model. If you mean 1998-2002 model -- the answer is DOT3.
Yes Ford's use transmission fluid; both 90 weight hypoid as well as Mercron fluid for automatics (some late model standards).
The type of transmission fluid to use should be engraved into your automatic transmission fluid dipstick ( at least it is on the newer model years )
Whatever Ford says to use for that model year.
10W-30 or 10W-40 works.
Automatic Transmission Fluid /Dexron III or higher. DO NOT use Pentosin in this model. If you do you will eventually regret it.
All Mercedes model cars should only use synthetic DOT4 brake fluid
Generally, 30,000 miles is considered the normal frequency to change fluids. It depends on heavy duty use or not, the quality of the transmission fluid, if the fluid is a synthetic fluid, such as Amsoil, and can depend on the model of vehicle.
If you have anything other than brake fluid in the line, then the whole system has to be flushed. Use fresh brake fluid and you can blow the system with air pressure then bleed with the d.o.t. specified fluid for your model.