Rotated my tires today and found fairly heavy corrosion of some of the lug nuts. It looks like electrolysis might be what's happening. There is a fine white powder along with what looks like plain ol rust. What would cause this and would anti-sieze cure it?

Only 25k on my truck so far.

May be caused by just driving through water/rain, etc. Sounds like galvanic corrosion. Dissimular metals. And yes, use a quality thread antisieze. I have to clean my lugnuts every time I rotate the tires due to grime and this kind of corrosion to keep ahead of it. It takes a little while longer to do the whole job, but it's always peace of mind. Just my $.02.

BB