What size is the transmission drain plug?

Detailed Applications

How do you check the gearbox oil on a Land Rover Discovery?

Steps to Checking Your Transmission Fluid

1. Turn the car on.
2. Find the transmission fluid dipstick.
3. Remove the dipstick and touch the fluid, moving it around between your thumb and forefinger.
4. Use a rag to wipe off the dipstick.
5. Use a funnel to bring the fluid level up to the right spot.

What size socket do I need to change transmission fluid?

It looks like a breaker bar with an adaptor that would be used to connect 1/2” drive tools to 3/8” sockets. The drain plug is simply a 3/8” square so any extension with a 3/8” inch square will work. You don’t need a special tool.

How often do you need to add transmission fluid?

Manual transmissions generally need transmission fluid changes more frequently than automatic transmissions. The average recommended interval for manual transmissions is around 30,000 to 60,000 miles. For automatic transmissions, the recommended interval is around 60,000 to 100,000 miles.

How do you drain transmission fluid without losing the pan?

How to Change Transmission Fluid Without Removing the Pan

1. Start and run the engine.
2. Park and secure the vehicle.
3. Place the bucket under the transmission drain pan.
4. Carefully remove the drain plug using a socket wrench with the appropriate socket.
5. Replace the crush washer.
6. Replace the drain plug.

Can you put automatic transmission fluid in a manual transmission?

Will automatic transmission fluid work in a manual transmission? Yes – provided the original equipment manufacturer recommends it. It’s important to check your owner’s manual to make sure before dumping ATF in your manual transmission. In fact, some manuals may call for a gear lube or even a motor oil in older units.