I used to use their oil, fuel additive, and grease...

I used to use their oil, fuel additive, and grease and most of their products are good. I came across a problem with a batch of oil that I used for my power Divider Differential in my almost new truck. The oil turned to a solid blob under 32 degrees and at 0 degrees it definitely couldn't reach the critical parts in the top of the power Divider. I did my part by documenting the breakdown, (I had to be towed at 80,000 pounds in the middle of Wyoming to get a remanufactured differential put in my almost new truck) we found the oil when below freezing would turn to a gel and wouldn't flow. I took a video of the new oil I still had at home after I put it in my freezer overnight at 4 degrees and it wouldn't pour at all. Dispite the video, pictures of the damage, oil all over from when they took the diff out, and a statement from the Wonderful repair shop I used Schaeffer's still blew me off and won't own up to the incident. That's ok though, it'll come back to bite them in the end. Think twice about using them just for the reason they won't stand behind their product if there's a problem. Back to Mobil and Delo, just good old oil and lube...