Source: Automotive Service Association (ASA)

The vehicle's fluids are very important and should be checked regularly. These fluids include the following:

Brake Fluid — This check is done by loosening the clip on the master cylinder and removing the lid. If fluid is needed, consult the vehicle owner's manual for correct type and fill to recommended level.

Engine Oil — Correct engine oil level should be maintained to assure proper lubrication of your vehicle's engine. It is best to check engine oil level approximately five minutes after a fully warmed up engine is turned off or before starting the engine after is has sat for a long period of time. Remove the engine oil dipstick, wipe the dipstick clean with a lint-free cloth or paper towel. Reinsert dipstick until it fully seats in its tube. Remove dipstick and read oil level. Add oil only when the level is at or below the ADD OIL mark.

Power Steering Fluid — This check is done by removing and checking the dipstick. NOTE: The dipstick is attached to the cap of the power steering fluid reservoir. Use the dipstick to check fluid level in the same manner as you would check engine oil.
Transmission/Transaxle Fluid — This check should be done while the engine is running in neutral with the parking brake securely set. The transmission should be at operating temperature. Remove dipstick, wipe clean, insert and remove again to check fluid level. CAUTION: DO NOT OVERFILL!

Windshield Washer Solvent — This check should be done by removing the cap and reservoir and refilling with solvent.

Antifreeze — This check is done by removing the radiator cap from the cool engine and refilling, if needed, with antifreeze.