Quote:

Does anybody use this:

http://www.zddplus.com/


I've used this stuff for a few years now on my engines with the high spring rates and agressive lobes...So far so good.. .I guess if nothing flies apart it's working... ..Seriously though I use it in addition to a high zinc oil so mabe it's overkill mabe not...I wait until it's on sale and snag a bunch of them...