BG ATC Plus by BG Automatic Transmission Fluid, 11 fl oz, 0.7 lbs, Maintain Automatic Transmissions, Prevent Corrosion

Put in a 2009 Outback 3.0R with a 5EAT transmission. After changing the fluid 3 times, I added this stuff. It definitely helped make the transmission feel smoother. I wasn’t having any slipping or shifting issues, but sometimes the transmission felt a little lazy. It helps a lot. This isn’t going to fix your transmission if you are slipping or missing gear changes. It’s not a transmission repair. It helps an old transmission shift better by softening up hardened seals, increasing viscosity which helps worn valve bodies direct fluid pressure faster when the fluid is hot, and it replenishes friction modifiers as well as detergents for when your transmission still has old fluid mixed in with new fluid.

Good stuff!

Great

2021 Silverado 2500HD 4x4 l8t 6-speed. Trans started shifting funny. I started watching my trans temp. Running 212F-225F unladen. I realized there is a problem. The solution was to replace factory transmission thermostat with updated 158F/70C thermostat. Did a fluid/filter change(dropped pan), and still shifted unusual. Themp now running 147F-160F unladen. Pulled 1qt from trans check bolt with truck on angle cold. Mixed 11ox BG ATC Plus with enough new fluid to make 1qt. Shook well, and pumped in fill port. Shifts like a dream.

All I can say about this product is buy it buy it buy it buy it I read and a previous review my transmission shifts like butter well I'm telling you I dropped two cans in my 2004 F250 it had a shuttering torque converter and I noticed a difference immediately the more I drove it the better it shifted no more Shutters no more stalls. It's amazing. I recommend anyone who has a problem with their transmission before taking it to a mechanic to buy two cans and drop it straight in on top of your existing transmission fluid that's all you do saved me thousands.