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Discussion Starter #1
I have a slight transmission whine before the last shift. Is there a good additive that would quiet that down? I have a 2005 XG350L.
 

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Discussion Starter #2
Update: The dealer did a transmission service flush and fill. The car now has a slight whine in the transmission before the last shift. The owners manual calls for SP3 and I have a Hyundai TSB that says use only the ATF specified in the vehicle's owner's manual and it say's SP3. The dealer put a ATF SYN Blend ATF Global in the transmission and would the difference cause my whine?
 
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