I highly recommend the Ford Motorcraft XT-M5-QS synthetic fluid. This has made an amazing difference in shift feel for many, many people. Including myself. You will need 3 quarts total. It actually holds about 2.6 to 2.8. Make sure the car is perfectly level and drain the old out. Fill it in the fill hole until the fluid start coming back out of the fill hole. Let that come out till it stops. It's now perfectly full (if car is level).
in the transmission.
The 2008 Mazda MAZDA5 has a 5-speed manual.
The 2008 Mazda MAZDA3 has a 5-speed manual.
The 2008 Mazda MAZDA6 has a 5-speed manual.
The 2008 Mazda CX-9 has a 6-speed shiftable automatic.
The 2008 Mazda MX-5-Miata has a 5-speed manual.
The 2008 Bentley Continental-GT-Speed has a 6-speed shiftable automatic.
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Based on all available, reliable data, the Mazda CX-9 has not had any reported transmission problems since it was introduced in 2007. The 2008-2013 CX-9 use a 6-speed Aisin automatic transmission which has been very reliable with no known defects or problems.
The 2008 Toyota Tacoma has a 5-speed manual.
The 2008 Volkswagen GTI has a 6-speed manual.
The 2008 GMC Savana has a 4-speed automatic.