6l90e Fluid Interval

[mcolv2]

How often are you all changing your fluid and filter in these transmissions? 50k or 100K ? Mine is an '09 with about 49 thousand miles.

 

I know that they need Dexron VI. Thanks!

[gmtech4]

what does owners manual suggest ??

[alaska511]

I bought new line disconnect tools last week, and have been itching to flush mine

 

I have just short of 30K.

 

I will go full synthetic when I do it.

 

Just follow the recommendations manual, you will be fine.

[txab]

I bought new line disconnect tools last week, and have been itching to flush mine

 

I have just short of 30K.

 

I will go full synthetic when I do it.

 

Just follow the recommendations manual, you will be fine.

 

 

[Z45]

Any towing or hauling, change at 50,000 miles. Around town crusier and never worked, 100,000 miles.

 

Not all tranmission fluids (ATF) are the same. There is a differnece in those that just meet the minimum specifications and high performance fluids that exceed the specifications.