So ive had my new 2011 tacoma trd off road for two or three months now and it has 6600 miles. Yesterday I noticed the rear diff is leaking where the driveshaft goes into it. I believe this is called the pinion seal but im not sure.
There was a pretty big puddle so I drained and refilled it because I wasnt sure how much ran out. Let me just say that a 30k interval for the diff fluid is bull shit. at 6600 miles the fluid was black and the magnet drain plug was COVERED in a black metallic paste with metal flakes in it. WTF toyota.
So im gonna call the dealer as im under warranty for them to replace it. Im going to tell them everything above(minus the WTF part). and they better not deny me warranty coverage because I refilled it. I used 75w-90 like the book called for. and I used mobil 1 but they dont need to know that.