As an experienced mechanic, I can confirm that maintaining your vehicle’s optimal performance requires constant monitoring of its vital fluids. Start by referring to your owner’s manual and looking for the engine diagram, which usually shows where to check all the main fluids. If your manual is missing, ask a knowledgeable mechanic or friend for help.
Here are the fluids to check on most vehicles:
- Engine oil: Located at the front of the engine, marked with “OIL”. Check the oil level with the engine OFF. Remove the dipstick, wipe it clean, reinsert it, then pull it out and check the level. The dipstick typically has two marks for minimum and maximum levels. Check oil every 2 weeks.
- Transmission fluid: If your vehicle has an automatic transmission, use the dipstick to check the fluid level, usually located at the back of the engine compartment or passenger side. Check the owner’s manual or dipstick for instructions. Drive the car a short distance, put the transmission in park or neutral with the engine running, wipe the dipstick, reinsert, pull it out, and check the level. For manual transmissions, there’s no dipstick, have a mechanic check the fluid level.
- Engine coolant: Do not open the radiator cap when the engine is hot, as the pressure can cause hot coolant to splash. Most vehicles have an overflow bottle with level markings, keep the coolant between these marks. If you need to open the radiator, make sure the engine is cold.
- Power steering fluid: Check the fluid level at the pump or separate reservoir. Drive the car a short distance to bring the fluid to operating temperature, then check the level using the small dipstick attached to the reservoir cap.
- Brake fluid: On newer vehicles, check the brake fluid level without removing the master cylinder cap. There will be level markings on the plastic reservoir. If you need to remove the cover, be careful not to spill fluid on the paint, as brake fluid can strip it.
- Windshield washer fluid: Check the level of the blue liquid in the reservoir. Most have level markings on the side, some newer vehicles have them hidden. Fill to the top, overfilling is harmless.
Use a funnel when adding fluid to avoid spills. Keep track of oil and transmission fluid additions, frequent additions can indicate leaks or engine wear.