ATP AT-202 Protectant is a full synthetic ATF additive. It blends with ATF to improve it’s performance properties, reducing torque converter shutter, clutch pack chatter and converting standard ATF types to a synthetic-blend fluid. The exclusive formula protects the transmission by reducing internal heat & wear, thermal breakdown, oxidation and varnish in all applications – from improving efficiency and life of a transmission in a daily driver, to severe duty applications such as commercial use, towing or high output applications.
- Synthetic formula protects transmission by reducing internal heat & wear
- Resists fluid thermal breakdown, oxidation, varnish and sludge
- Improves shift quality and performance in normal to severe duty conditions
- Eliminates TQ converter shutter and clutch pack chatter, blends with fluid for immediate effectiveness
- Compatible with all automatic transmissions and 4×4 transfer cases












Strike Commando –
I’m not exactly a mechanical idiot when it comes to cars (I’m not expert either), but I know that most of those $15-$50 engine super-amazing treatments are complete BS placebos just there to make you feel better. So, I’m usually skeptical about pouring something into your car to solve a problem.But I’ll be damned; this stuff actually works, and quickly to boot! I’m telling you, it’s like magical transmission juice. Maybe it won’t work for everyone, but I slogged in half a bottle into my jerky 1989 busted up beast and the next morning, the tranny ran like a champ!YMMV, but I’d say it’s worth a shot for the price.
Martin G. –
I bought a case of this stuff and it made most of the cars shift hard. We are a used car dealer and decided to put this in the transmissions of all the cars based on a friends recommendation. It may work if the car has a problem, but it seemed to create a problem in cars that didn’t have one. Now we know, don’t fix things that aren’t broken.
Mazie –
HAVE USED THIS IN 5 VEHICLES WITH SHIFTING PROBLEMS AND FIXED 4. A LOT CHEAPER THEN A REBUILD!
Collin –
After bad fluid leak, replacement with regular fluid made transmission hesitate when placed in Drive. Problem solved within 30 minutes of use.
Jesse Goodrich –
Working great in my suv.
Amazon Customer –
Added this product to five (5) different autos and (1) truck transmission that had problems and – Problem solved! No more problems! Works 😊
csoll13 –
my 2012 fj cruiser alwasy shifted a little weird. i change the fluid religiously, but never seemed to help. added this on my last change, and the shifts are nice a crisp. not bad for a stock auto trans with over 200k
Mark Denning –
good tranmission adder