I have a 99 ML 320 with about 275,000 miles on it. I have been using the Mercedes fluid. It leaks pretty badly these days. Have to top it off about every two to three weeks. If I get one of the cheaper fluids mentioned above, can I add it on top of the Mercedes fluid, or would I have to remove the existing fluid first? If I have to remove it, can I just suck it out with my Mityvac or do I need to drain it more thoroughly?

Also, what is the proper way to check the fluid level? I know the engine needs to be running, but do you 1) insert the dip stick until the bottom of the cap touches the reservoir or 2) do you screw the cap all the way dow? The graduation marks on the dip stick are spaced pretty closely and this makes a significant difference.

__________________


Behind every great man is a great woman. Behind every great woman is a great behind.