My brother had a "shudder" in his 2009 Mercury Marquis 4.6 when the transmission switched into cruise control at 45-50 mph. Added the DR TRANNY as directed and it's now shifting as smooth as can be. Easy to use, just make sure you have enough based on the amount of transmission fluid and also make sure it's compatible with your fluid. So far no issues.
Verified purchase: Yes | Condition: New
With 200,000 miles on my 2008 Chevy Suburban, it developed a slight shudder when it would shift into 2nd gear. I tried a tube of this stuff and amazingly it worked wonders. Within 10 miles of driving, the shudder was gone and has been gone for months now. This product works great for me. Thanks Lubegard!
Verified purchase: Yes | Condition: New
this is the best additive that I have ever used,thanks. lyou8136
Verified purchase: Yes | Condition: New
Fixed my shuttering 8 speed chevy truck don't know how long it will last right now it is working perfect Thanks
Verified purchase: Yes | Condition: New
Unfortunately I was unable to use it. It is not recommended for use on CVT transmissions
Verified purchase: Yes | Condition: New
I cannot believe that this stuff works, but it does. Thanks
Verified purchase: Yes | Condition: New
Works good for sticking valve bodies. Makes the shifts a lot smoother.
Verified purchase: Yes | Condition: New
Great transmission shutter fix
Verified purchase: Yes | Condition: New
This stuff does what it says. Fixed my Tranny Shudder problem within minutes
Verified purchase: Yes | Condition: New
works good as intended
Verified purchase: Yes | Condition: New
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