How to Change Transmission Fluid
Learn how to change transmission fluid with our detailed step-by-step guide. Follow our easy instructions to get it done right.
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0 of 6 steps completedStep-by-Step Instructions
1 Step 1: Check if Transmission Has Drain Plug
Step 1: Check if Transmission Has Drain Plug
Look under car - some transmissions have drain plug, others require pan removal.
Vehicle Service Manual
Manual with transmission service procedures
2 Step 2: Warm Up Transmission
Step 2: Warm Up Transmission
Drive car for 10 minutes to warm transmission fluid for better drainage.
3 Step 3: Drain Old Transmission Fluid
Step 3: Drain Old Transmission Fluid
Remove drain plug or transmission pan bolts, drain fluid into large pan.
Large Drain Pan
16-quart capacity pan for transmission fluid (holds 4+ gallons)
Socket Set
Tools for removing drain plug or pan bolts
4 Step 4: Replace Filter if Accessible
Step 4: Replace Filter if Accessible
If pan is removed, replace internal filter and clean magnet in pan.
Transmission Filter Kit
Filter with pan gasket for fluid service
Gasket Scraper
Tool for removing old pan gasket
5 Step 5: Reinstall Pan with New Gasket
Step 5: Reinstall Pan with New Gasket
Install new gasket or RTV sealant, reinstall pan, torque bolts to spec in crisscross pattern.
RTV Silicone Gasket Maker
Sealant for transmission pan if no gasket used
6 Step 6: Refill with Correct Fluid Type
Step 6: Refill with Correct Fluid Type
Add manufacturer-specified ATF through dipstick tube or fill plug, check level when warm.
ATF Transmission Fluid
Automatic transmission fluid for your vehicle (1 quart)
Fluid Transfer Pump
Hand pump for adding fluid through dipstick tube