The average car has around 30,000 parts and many fluids are used to keep them running properly. The most important fluids are motor oil, transmission fluid, brake fluid, washer fluid and coolant.

Add Yahoo as a preferred source to see more of our stories on Google. Q: When I check the transmission fluid level dipstick on my 2003 Honda Accord, do I check with the car on or off? A: This question ...

A: This question isn’t as simple as you may think. Generally, any car with a dipstick for an automatic transmission is checked with the fluid at normal operating temperature and the engine running on ...