Automatic transmissions should be checked for proper fluid levels at regular intervals, and the fluid should be changed at manufacturer-recommended intervals. However, this may vary due to your vehicle's operating conditions. Some manufacturers recommend more frequent changes of transmission fluid under severe driving conditions, such as heavy traffic, hot weather and trailer pulling.
For more information, see the Mobil ATF Limited Warranty, and the Mobil 1 Synthetic ATF Product Data Sheet and Material Safety Data Sheet.
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