Big Block, um, NO, Mike S clearly stated that running in 4wd on dry pavement would clearly NOT cause premature wear on this 4WD system. No where in his OPINION did he state ANYTHING about JUST on winter snowy conditions. He PERFECTLY stated that it was ok, and that nothing would happen to the system and used the argument that drag racers use 4wd all the time in racing condtions and how that was very abusive and if anyone was to see 4wd wear it would be them. Those racers also do not make turns, or backup into mall parking lots, orr turn around in a driveway.
My total argument that was there is no way in hell that this 4wd system could handle the stresses and heat of driving in 4wd all the time, that is why there is that little button or lever to take it out when NOT needed. Otherwise, they would have put an AWD system with clutches and slipping differentials in it like they do in Yukon Denalis.
As far as oil go, I am a fan of Amsoil, as I am a big time Sprint car fan and when I was growing up in the 70s and 80s and was walking around pit areas of race tracks, most of those drviers used Amsoil Rear End lube exclusively, and there were NO Amsoil advertisements anywhere to be seen. Upon asking about why they were using something no one had heard of, they simply replied they only used the best stuff when so much was on the line. Amsoil was not paying any of them to run it, so I guess all those years with no fear end issues, they all got lucky?? Most of them still use it today. So some guys on here, with many years of experience and the absolute EXPERT opinions they have get on here or any board and bash a product for no good reason other then their selling scheme and pushy dealers, but yet no one has ever proven the oil to be bad??? I mean even the testing results I have seen by independent labs are splitting hairs on what is the nest and even the worst oil out there is better than manufacturer specs. So What gives?? I dont bash Shaffer, Mobil 1, Pennzoil, none of them. I have only bashed MONSTER DIESEL additives because of their better than sliced bread, "HANDS DOWN" because Paul Sr, said so marketing scheme. Amsoil never promoted their product as anywhere near this. Some dealers do, but none of Amsoils mnarketing is out of this world type of deal.
One of my best friends in racing is a Scaeffer oil dealer, never used the stuff, but I know it is good stuff. I prefer what I use for now, and so far, it is doing perfectly.