This is a very generic question, but I was wondering what you all did. I was pumping gear oil in my diffs and was thinking about changing out the transfer case oil and putting the Redline C+ stuff in.

In my case I used a pump to fill the differentials. My question is how do you guys clean the pumps out so you don't cross contaminate new fluids (get gear oil in your transfer case where it should only be ATF +4). Or do you just dedicate that pump for pumping gear oil and buy a brand new one for ATF, etc?

 

I personally don't worry too much if I'm doing a lot of work. a little bit of the other oil wont hurt. I just have a habit of cleaning ALL my tools after I'm done you can usually use acetone, paint thinner, or varsol to clean it out.

 

I've used Gasoline in the Past to clean a fluid transfer pump. didnt run it long though. just filled the lines with gas and let them sit for a few minutes then stuck them both in a small bucket with some more gas and let it circulate for a minute... removed a good bit of 80w90...