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Need to Flush Transmission if Switching Off a DEXRON III fluid to Mobil 1 Synthetic ATF?
 
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Question:
Need to Flush Transmission if Switching Off a DEXRON III fluid to Mobil 1 Synthetic ATF?
Do I need to flush all the Dexron III automatic transmission fluid if I go to a Mobil 1 Synthetic ATF?
-- Richard Cunningham, Rockaway, NJ
Answer:
While Mobil 1 Synthetic ATF is fully compatible with DEXRON® III ATFs, we recommend a full flush in order to get the full performance potential out of Mobil 1 Synthetic ATF.
 
 
DEXRON® is a registered trademark of General Motors.

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