Checking transmission fluid level?

2015 ACURA MDX
149,000 MILES • AUTOMATIC
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BHAMDOC1
  • MEMBER
  • 423 POSTS
do you do it with engine running after it is warm or with it off? Seen conflicting reports. I BELIVE IT MUST BE DONE AFTER REACHING OPTIMUM TEMP WHILE RUNNING. sOME SAY TURN ENGINE OFF AND CHECK IT 60-90 SECONDS AFTER
Oct 14, 2026 at 6:17 PM
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STRAILER
  • ✓Experienced Mechanic
  • 55,684 POSTS
To check the transmission fluid warm with the engine OFF, within 60–90 seconds after shutting it off. The engine-off advice you received is correct for this model.

1. Park on level ground and set the parking brake.

2. Bring the engine to normal operating temperature, then shut it off.

3. Within that 60–90-second window, remove the transmission dipstick, wipe it clean, fully reinsert it, and remove it again to read the level.

4. The fluid should be between the dipstick’s upper and lower marks. If needed, add Acura ATF DW-1 in small amounts; avoid overfilling.

Oct 15, 2026 at 8:41 AM
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