Royal Purple 06320-6PK Max ATF High Performance Synthetic Automatic Transmission Fluid - 1 qt. (Case of 6)

I was constantly having poor shifting and miss shifts with 09 4x4 GMC Sierra. Replaced the Dexi with this fluid and was amazed within two weeks it removed a thunk I had on second to third gear shift since new. No more missed or late shifts. I highly recommend this fluid and all Royal Purple lubricants which I use in the entire truck.

Es el mejor aceite para la transmisión

So good👍

Used this to bring new life to a 2003 Mitsubishi eclipse auto (117xxx miles) that had been sitting for about a year, project ongoing... This thing was suffering from some serious grandpa syndrome, and a bad case of neglect. Shifting was rough and some gears would not fully engage with clutches slipping, I thought this transmission would need an immediate rebuild. I figured $60 is worth a try over a $1500 rebuild. Did a hot drain-and-fill with the case of 6 quarts, and the old fluid looked like coffee. The first test drive showed immediate results even in the parking lot, shifting into reverse just glided into gear, at first I thought it didn't engage. The test drive yielded smooth shifting, and 300 miles later it keeps getting better. Sport mode chirped the original tires from first to second, and every shift over half throttle is a quick responsive positive pull. It still needs time to work in, and I have another drain-and-fill planned at 500 miles to make it just over 80% new fluid, but I'll wait for the top-notch detergents to clean more garbage out before the drop. I also used RP 5w-30HMX (high mileage) and RP's oil filter for the engine, it runs smoother and quieter, and now I can hear valve lash out of adjustment, which is a good sign you're running a good oil, easy fix when I replace the valve cover gasket. UPDATE: FEB 2017 Car is at 138,000 miles and still haven't done the second drain and fill, transmission still shifts better than some new cars. I did however start using RP's filter and 5w-30 HMX in the engine and picked up 3-4mpg overall, and freed a stuck lifter. Car is still going strong according to a friend I just sold it to.

I use all Royal Purple fluids in my vehicles. This ATF is top notch. I have used it in several of my vehicles without any issues. I have an older Toyota that was starting to shift funny, and using this, it restored it to crisp smooth shifts. Love this brand