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Checking Fluid Level & Condition

NOTE: Manufacturer recommends checking transmission fluid level at every oil change. The ATF amount varies according to ATF temperature. Therefore, when checking the ATF level or replacing the ATF, use a thermometer to measure the temperature then adjust the ATF amount to the specified level according to the specified temperature.
  1. Park the vehicle on level ground. Apply the parking brake and position wheel chocks securely to prevent the vehicle from rolling.
  2. Adjust the length or thermistor probe to measure the same depth as the oil dipstick and hold the probe with a paper holder. Insert into the filler tube and measure the temperature of the ATF.
  3. Inspect the ATF level before warming up the engine. In this case, use the cool range marked on dipstick 68°F (20°C). See Fig 1 . Warm up the engine until the ATF reaches a temperature of 141.75-158°F (60.75-70°C).
  4. While depressing the brake pedal, shift the gearshift lever to each range, pausing momentarily in each range and ending in Park position.
  5. While the engine is idling, verify that the ATF level is in the HOT range, approximately 149°F (65°C), on the dipstick. See Fig 1 . Add fluid as necessary. See RECOMMENDED FLUID  . DO NOT overfill. Check condition of fluid for contamination and burned smell. See FLUID CONDITION  table.
FLUID CONDITION

Condition Possible Cause
Clear Red Normal
Light Red (Pink) Contaminated With Water From Broken Oil Cooler Inside Of Radiator Or Poor Filler Tube Installation
Reddish Brown With Burnt Smell & Metal Specks Are Found Deteriorated ATF From Defect Of Powertrain Components Inside Of Transaxle. Specks Can Cause A Wide Range Of Problems By Plugging Up Oil Pipes, Control Valve Body & Oil Cooler In Radiator
Reddish Brown & No Burnt Smell Normal Discoloration Caused By Oxidation
Fig 1: Identifying Cool & Hot Range Of Dipstick
G00127429Courtesy of MAZDA MOTORS CORP.