Re: Transmission Service
How many miles on your Outlook?
What I do,
Buy the fluid on sale (usually it appears for $5.99 on sale for Valvoline Full Synthetic Dexron VI at NAPA.)
drain (5 qts come out), refill, drive for a tankfull, and repeat.
Allowing the fluid a chance to flow and mix with the other fluid.
(I have the 2010 Traverse- cousin to your Outlook).
Ive done this at the following intervals.
note that I did it 3 times around the 79-80K range. Changing it 3 times gets 87.5% of the old fluid (theres an equation for this).
my goal is to keep the fluid as clean as possible- and trans free of varnish and all that stuff.
Now at 124,200 miles.
Im keeping my eye open for the sale to do another drain refill.
so you have 2 options-- wait till say 100,000 and do a FLUID EXCHANGE at a shop.... (but you have very dirty fluid- and buildup). (dont do a flush-- not recommended by GM).
or change the fluid earlier to keep it clean and varnish buildup low....
heres the equation
"The equation you're looking for is x=0.5^n. Where "x" equals the amount of the original fluid left after "n" times of draining and replacing half of it's original capacity.
Drain and fill #1: x=0.5^1=0.5=50%
Drain and fill #2: x=0.5^2=0.25=25%
Drain and fill #3: x=0.5^3=0.125=12.5%
To get 95 % changed:
ln(0.05)/ln(0.5)=4.32 times --> so you would have to change it 5 times to have 95%+ new fluid. Of course, this is based on the assumptions that you always get 5 quarts out and that 5 quarts is half of it's total capacity."
I think most folks on the Traverse/Acadia/Enclave/Outlook either do the drain refill.... or have a shop use a machine.
I dont recall seeing a member do the disconnect at the radiator.
2010 FWD LT1-Gold Mist Metallic- seats 8.<br />Build Date- July 31, 2009-2nd day of Spring Hill 2010 production.<br />2013 Equinox 3.6L - 16,755<br />2010 Traverse 3.6L- 74,300<br />2003 Trailblazer 4.2L-170,500