We put our 95' Test Mule "Oscar" on the dyno a few weeks back with a stock 47rh transmission filled with new OEM ATF+4 fluid. We added enough power to slip the transmission and carefully tuned the power to where it would slip, then grab, then slip again all on the same pull depending on the RPM range and it held a maximum of
421 lb ft of torque. We then drained the fluid and re-filled with Power Torque ATF and repeated the same test. We ended up holding
546 lb ft of torque with Power Torque ATF! That's a 30% increase in torque capacity from fluid alone! We were hoping for 20% and the dyno delivered a 30% gain... simply amazing!
Here's the raw version:
Here's the pretty version:
We've had a few trucks really work this fluid hard with a slipping transmission and so far it has much, much better ability to handle extremely high temperature than standard ATF+4. We had one truck push Power Torque ATF to almost 300*F in his built 4R100 transmission.
If you competitively race or excessively beat on your automatic transmission, we're looking for more testers to really push the limits of this fluid, contact us here at Power Driven Diesel to see if you're a good test candidate: 435-962-9555.
If you don't race, but still want a hotrod ATF for your transmission, consider swapping over to Power Torque ATF.
http://www.powerdrivendiesel.com/product-category/power-driven-fluids/power-torque-atf/