Sent mail before I read on....not for sure on testing as I've read/heard both ways (coolant wars). I'm green and got it squared away....with help from the SDD membership....and am seriously considering the full flush/Evans change at 100K. You know, though....I repeat that I'm really skeptical regarding "plug n play" systems....seems like I get lazy and take that option I often end up with others feeding from my wallet.
Thanks for the mail. I do like to get under my truck once in awhile to check for leaks, loose stuff etc. In the spring I'm installing a 6 inch Donahoe Racing lift kit with dual shocks up front. Dual DR steering stabilizers, adjustable trac bar and 37 inch Pro Comp X Terrains. All the gear is in my garage and it's very difficult not to get at it right now.