Please choose the correct ending to complete the given sentence: Cars & Other Vehicles: [header] How to change transmission fluid [title] Check the level of transmission fluid first using the dipstick. [step] Automatic transmission fluid (atf) is the fluid used in vehicles with self-shifting or automatic transmissions. It's typically colored red or green to distinguish it from motor oil and other fluids in the vehicle.

Ending1: In general, you want to check the level of fluid when you put your car in gear. [substeps] Usually, you'll need to use a strainer or fan to check the level of fluid. Ending2: This should be the first sign that there is a problem. [substeps] If the level of fluid above the standard of 90ºf. Ending3: It's usually greenish or black in color for engine oil. [substeps] This is the readable discoloration that tells you the latest transmission fluid is being released. Ending4: On most vehicles, you can check the level with a dipstick, while the engine is running. [substeps] Look for the transmission fluid dipstick, which is usually red-handled.

Answer format: ending1/ending2/ending3/ending4