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37 reviews
Redline D4 ATF Synthetic
Replaced my manual trans fluid on my 95 E36 325i with this and the gears became rough to shift, including a horrible 5th gear grind. I am not sponsored by anybody, once i changed fluid with royal purple syncromax, the shifting became smooth again.Read full review
Verified purchase: Yes • Condition: new • Sold by: pandaracingpro
full synthetic transmission fluid.
good product work as described, I real like it. Thanks..
Verified purchase: Yes • Condition: new • Sold by: madison-motors
Don't Use Anything Else
300,000+ miles on T5 never apart.
Improves hot and cold shifting .
I owe it all to Red Line.
Expensive but worth it!
Verified purchase: Yes • Condition: new • Sold by: aristocrat_coll...
Great stuff
Works well for manual transmissions that use dexron fluid
Verified purchase: Yes • Condition: new • Sold by: atracingworld-usa
A must for manuals
It's great for my 2011 Ranger 5 speed manual. Makes it shift much smoother than the 2 other ATF fluids I have used in it.
Verified purchase: Yes • Condition: new • Sold by: racecarpartsonline
ATF+4
Excellent Stuff! Arrived very quickly so I could complete my project. THANKS!
Verified purchase: Yes • Condition: new • Sold by: racecarpartsonline
Best fluids on the market!
Great fluid! Made my 2010 Camaro SS Transmission go from being really notchy to really smooth!
Verified purchase: Yes • Condition: new • Sold by: pitstoptuningcom
Great Stuff
This stuff right here..Red Line...You looking for Quality? You found it..This Stuff Right Here
Verified purchase: Yes • Condition: new • Sold by: racecarpartsonline
Can’t go wrong with red line products
It seemed to make my car shift smoother redline is a good product
Verified purchase: Yes • Condition: new • Sold by: racecarpartsonline
Refill Transmission Fluid
Had a problem with the transmission fluid line leaking. Had to refill after repairing leak.
Verified purchase: Yes • Condition: new • Sold by: racecarpartsonline