On my `16 Chevy Suburban with the 6 speed and 5.3 L, I just did the change to the lower temp. thermostat as per TSB 21-NA-199 which lowers the temp 26 degrees F or 20 C. New full open temp. is 158F or 70C.
I wasn't having any issues, just wanted to perform this update to hopefully prolong tranny life.
Only lost about 2 oz, during the thermostat swap. However, did notice some metal particles in the fluid. I will be sure to perform a pan drop and a filter change around 30,000 miles. I know the pan is a pain to get off due to the exhaust being in the way. Saw the tricks to get it off on YouTube.
Any preference as to what Dexron 6 to use? Should I just stick to a name brand Dex 6, like Valvoline, Mobil, AC Delco, etc. or would I be better off with Amsoil Sig Series ATF or Redline D6? Looks like it will be around 6 quarts, the price doesn't bother me for Amsoil or Redline and I already have an Amsoil account. But would I better be served with a Dex 6 specific fluid.
I believe most of the failures are due to the Torque convertor being shot around 150,000 miles and shed metal throughout. The engineering design, slips the convertor during AFM to reduce the vibration of the engine running on 4 cylinders. Something tells me it is a design issue, not a maintenance issue that causes the failures, however good maintenance should help.
I wasn't having any issues, just wanted to perform this update to hopefully prolong tranny life.
Only lost about 2 oz, during the thermostat swap. However, did notice some metal particles in the fluid. I will be sure to perform a pan drop and a filter change around 30,000 miles. I know the pan is a pain to get off due to the exhaust being in the way. Saw the tricks to get it off on YouTube.
Any preference as to what Dexron 6 to use? Should I just stick to a name brand Dex 6, like Valvoline, Mobil, AC Delco, etc. or would I be better off with Amsoil Sig Series ATF or Redline D6? Looks like it will be around 6 quarts, the price doesn't bother me for Amsoil or Redline and I already have an Amsoil account. But would I better be served with a Dex 6 specific fluid.
I believe most of the failures are due to the Torque convertor being shot around 150,000 miles and shed metal throughout. The engineering design, slips the convertor during AFM to reduce the vibration of the engine running on 4 cylinders. Something tells me it is a design issue, not a maintenance issue that causes the failures, however good maintenance should help.
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