Brute Force 750 Thick Milky Differential Oil HELP!!

bnjracing13 · 10-13-2009

I have a 2007 brute force 750 that i recently bought. Well i decided to go ahead and service it and went to drain the front differential; but only a thick milky sludge came out in clots! How do i clean all this mess out the right way?

Thanks

86klf300guy · 10-13-2009

basically you are goin to have to flush it out.

i have used diesel fuel with the diff oil and run it for 15 min and then drain it out.the diesel fuel will clean with out hurtin nothing.but only use a 1/4 cup per qt of oilor a3to 1 ration 3 part oil 1 part diesel.ounce. ounce you havedrain and refilled the diff with new oil.ride it for about 5-6 hrs and change it one more time while its hot,this will make sure all the milk shake color is gone.

hope this may help out -corey-

wabco63 · 10-13-2009

if it was me , I would use brake clean , then fill it with proper oil , ride it then change it when warm and repeat

99prairie400 · 10-14-2009

I had milk in my Prairie 400's diff when I got back home from my mudding trip. The vent hose had slipped off at some point...

I left the drain plug out for two days, filled it to the top with kerosene, ran it up and down the driveway 4 times, drained and filled it with kerosene again, ran it four more times, and then refilled with 80-90 gearoil and limited slip additive. No more milky.

10-13-2009	#1 (permalink)
bnjracing13 Newbie Join Date: Oct 2009 Posts: 1	Brute Force 750 Thick Milky Differential Oil HELP!! I have a 2007 brute force 750 that i recently bought. Well i decided to go ahead and service it and went to drain the front differential; but only a thick milky sludge came out in clots! How do i clean all this mess out the right way? Thanks

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10-13-2009	#2 (permalink)
86klf300guy Way Too Much Free Time BTK Expert Join Date: Feb 2008 Location: some where in ohio Posts: 1,203	basically you are goin to have to flush it out. i have used diesel fuel with the diff oil and run it for 15 min and then drain it out.the diesel fuel will clean with out hurtin nothing.but only use a 1/4 cup per qt of oilor a3to 1 ration 3 part oil 1 part diesel.ounce. ounce you havedrain and refilled the diff with new oil.ride it for about 5-6 hrs and change it one more time while its hot,this will make sure all the milk shake color is gone. hope this may help out -corey-

10-13-2009	#3 (permalink)
wabco63 bruteforcevoyagerzx12 Join Date: Oct 2009 Location: alberta Posts: 2	if it was me , I would use brake clean , then fill it with proper oil , ride it then change it when warm and repeat

10-14-2009	#4 (permalink)
99prairie400 Top Gear Full Throttle BTK Expert Join Date: Oct 2008 Location: Butner, NC Posts: 305	I had milk in my Prairie 400's diff when I got back home from my mudding trip. The vent hose had slipped off at some point... I left the drain plug out for two days, filled it to the top with kerosene, ran it up and down the driveway 4 times, drained and filled it with kerosene again, ran it four more times, and then refilled with 80-90 gearoil and limited slip additive. No more milky.

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