Changing the transmission fluid on any car or truck is a vital part of preventative maintence.
Read your owners manual but it is generally recommended that you change the transmission fluid every 30,000 miles and the filter every 60,000 miles.
By doing this cheap preventative maintence you can help insure a long and healthy life for your transmission.
Here we show how to change it on a 2000 Land Rover Discovery Series II.
Land Rovers use Dexron III, try and buy a name brand and have 6 quarts on hand for this, 8 quarts for when you change the filter too.
You will need a 8mm allen wrench for the fill/check plug and a 5mm allen wrench for the drain plug.
The drain plug is on the bottom of the transmission oil sump and the fill/check plug is on the front of the transmission sump.
Remove the fill/check plug and then place your drain pan under the transmission sump and remove the drain plug.
Once all of the fluid has drained out clean the area around the drain plug and make sure that you clean the drain plug threads and that the washer is still in place.
Then using a hand pump such as this that you can buy at any store for around $10 US refill the transmission.
Pump the new transmission fluid into the fill/check hole until it starts to come out of the hole, replace the plug.
Start the truck and shift though all of the transmission gears and hold each one for 2-3 seconds, starting in park and continue until you reach 1st, then go back to park.
Remove the fill/check plug and make sure that the transmission is full, fluid should come out at a nice steady rate, if so you are full.
Pour your dirty transmission fluid into a container and take it to be recycled, any quick lube oil change place will take it as well as autoparts stores.
Budget one hour for this job.