In Reply to: Re: Oil Gelling in Toyotas posted by Jim on 03/18/02 at 6:22 PM:
I have run across gelling before, but, it has not been a design problem. It was always chemistry.
Of course it depends on what is being called "gelling". Poor cooling and oil circulation combined with metal fines acting as a catalyst, can lead to lube fractioning. Lighter portions evaporate leaving heavier fractions which would look like sludge.
Of course, without having the actual analysis data on the "gelled" lube, I am only thinking in print.