SHOdded said:15 quarts will be required if using the 3x drain/fill method. Without a flush, the torque converter won't release it's share. So the 3x D/F serves as a good substitute.
And I'd agree with that, as long as you keep an eye on the color and smell of the fluid.FoMoCoSHO said:I'd say don't waste time and money changing fluid that isn't even broken in yet...
SHOdded said:This is based on how much fluid you get out in 1 drain. If you get out 11 quarts, you are set with just one cycle. If you get out 5 quarts, you will need to drain a total of 3 times to get the same effect as a flush. This 3x is true for the 6f50 transmission, and I expect it holds true for the 6f55 as well.
Put in the same quantity you drain each time. Run the engine for three minutes, with the parking brake on and foot on the brake pedal, work through the gears. Turn the engine off. Drain & fill. Repeat until total of 3 D/F cycles are complete.
I suggest to anyone that actually likes to put the pedal to the metal and/or does a lot of city/stopngo driving to read past the "normal operating conditions" section to the "special operating conditions" section. Decide then what interval is suitable for you. Keep a log of transmission temperatures to see what range the fluid is spending its' life in. Are you allowing the trans to warm up fully before getting on it? Or are you content to do so with only the engine warmed up to operating temp?FoMoCoSHO said:My owners manual says 150K.
FoMoCoSHO said:My owners manual says 150K.