If you suspect a problem with your Mazda Protege's manual transmission (e.g., hard shifting, grinding, leaking fluid), you should not attempt to "fill" it. Instead, take these steps:
1. Identify the transmission fluid leak: Locate the source of any leaks. This could be a seal, gasket, or even a crack in the transmission case. Repairing this leak is crucial before considering a fluid change.
2. Consult your owner's manual: It will specify the correct type and amount of transmission fluid for your specific year and model of Mazda Protege. Using the wrong fluid can severely damage the transmission.
3. Take it to a qualified mechanic: Unless you have significant experience working on manual transmissions, you should have a mechanic perform the fluid change. They have the specialized tools and knowledge to do it correctly. Simply adding fluid without knowing the correct level and procedure can cause more harm.
What a mechanic will do (if a fluid change is needed):
* Drain the old fluid: They'll locate the drain plug on the transmission, drain the old fluid, and replace the drain plug with a new crush washer.
* Fill the transmission with new fluid: They will use the correct type and amount of fluid as specified in your owner's manual or a service manual. This usually involves filling it through a specific fill plug (often located higher than the drain plug) and checking the fluid level, often by measuring the level that overflows out the fill hole.
* Inspect the transmission: They will visually inspect the transmission for any obvious damage or leaks.
Trying to "top off" a manual transmission without proper knowledge can result in overfilling, which can damage the transmission's internals. It's far safer and more effective to have a professional handle this task.
