Q: Quantity of atf fluid for the transmission

asked by on

In small accident my ATF fluid coolant was impact so I got to change it . But the problem was that i have no idea about the quantity of ATF fluid was inside so now I am about to change the ATF fluid and I am looking for the proper amount of fluid should I put in

My car has 346668 miles.
My car has an automatic transmission.

A: Hello. If your ATF dipstick has marks on it...

Hello. If your ATF dipstick has marks on it, you can use those marks as a guide to re-fill it. The marks may designate "cold" and "hot" fluid levels. Best to check it cold, and then check later after a SHORT drive (maybe 10 miles if 85 degrees outside). ATF fluid expands quite a bit when HOT so you don't want to check fluid level when it is really hot after driving say 40 miles at 65 MPH, because you will get a false reading. Be very careful to NOT overfill ATF fluid as that will cause the fluid to become air entrained (filled with bubbles), which will ruin its lubricating and hydraulic properties in the transmission. Add small amounts (ounces) as you near the full mark (or range) on the transmission oil dipstick so you don't have to drain fluid. If you would rather have a local expert take care of this, a qualified professional from YourMechanic can service your transmission fluid at your car's location.

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Save up to 30%

Get a quote

What others are asking

Q: Advice on buying a 2009 Pontiac G8 GT

There will always be parts available to some extent because a lot of these parts are interchangeable. Pontiacs can be fun cars to drive. My advice is to not pay too much for it. Because, when they don't make cars...

Q: How Long Does a Transmission Filter Last?

Most transmission filters are designed to filter the transmission fluid of metal particles from normal wear of a transmission. The filter is made from a paper filter media or a fine metal mesh screen. Some filters are an external screw-on...

Q: Connector that links shift lever to transmission disconnecting

Hello. If the shifter cable is popping off of the transmission selector sensor, then either the end of the cable is worn out or the selector is bad. Most of the time the cable end is where the problem is...

Related articles

How Do Power Car Windows Increase Passenger Safety?
Power windows are responsible for approximately 2,000 emergency room visits every year. When a power window closes, it exerts enough force to bruise or break bones, crush fingers, or restrict an airway. Though...
How Long Does a Distributor O Ring Last?
The distributor is part of the ignition system in your vehicle and its purpose is to route high voltage from the ignition coil to the spark plug. The spark plug then...
How Much Does a Mechanic Make in Vermont?
Automotive technician jobs in Vermont have an average mechanic salary of $37k, with some mechanics earning a salary of $53k.