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Guest Message by DevFuse

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Help with 2010 Ford Fusion Sport Transmission Question?

type of transmission

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#1 OFFLINE   Boston1313


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  • Fusion Sport Member
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    • Member ID: 183
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  • Region:U.S. Northeast
  • LocationBoston, MA
  • Current Vehicle:2010 Ford Fusion Sport

Posted 03 April 2016 - 09:34 PM

Not sure if this is posted in the correct place or not?



I have a 2010 Ford Fusion Sport FWD 3.5 Engine. The vehicle has 211,000 miles on it. It was a one owner car and the transmission fluid has never been changed. I would like to know what transmission I have so I can buy the proper transmission fluid and perform a drain and refill.

Some blogs say the Transmission is a 6F35, some say 6F50 and some say Aisin?

Some blogs state I need " Mercon LV Fluid?

Some Blogs state I need Mercon V Fluid?

Some state that I need XT-8-QAW Fluid?

Some state that I can use Mobile 3309 Fluid ?

My intention is to do the drain and refill three times service to try and get the most clean fluid I can within. I have read some of the forums and they all seem to agree not to get the transmission flushed but rather drained and refilled. It seems the flush can cause more problems then its worth.

Any help would be appreciated, I would prefer to get this information prior to getting it up on stands to perform the maintenance.

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