Originally Posted by
Billy22Bob
He was also actually suprised how bad the OEM oil was after 80k miles when they drained it. I guess that's evidence that there's a lot of heat being generated in these babies at highway cycle.
When i did the wavetrac in mine, the car only had 8k miles, and i couldnt belive how bad the factory oil looked in the diff. And there was a bit of sludge in the case as well. Much more then i would expect for that low of milage. I guess age plays a part with that too. 7-8 yr old oil.
OEM should recomend a brake-in oil change for the diff after x# of miles or within the first year of new car ownership. IMO