2015 Tacoma, 1,015 miles, Factory Fill Rear Diff.

[btanchors]

Just got a new 2015 Toyota Tacoma Double-Cab V6 4WD. I always change factory fill fluids early. I thought it would be fun/interesting to perform UOAs on the factory fill, just for curiosity's sake. This sample is from the rear differential. I was curious about:

1) Whether Toyota really uses 75W-85 as factory fill. (Yep, they *do*)

2) Whether it really is worth it to change out factory fill so early. After seeing this UOA, I think it is, but you be the judge. Keep in mind there is only 1,015 miles, and 3 months since the truck was built.

What do you think?

 

[19jacobob93]

Wow looking at this i'd say its worth it alright. And to think 90% of people would probably leave that stuff in for another 15 years...
I's change it again in a year or so and then every 50-100k after that

 

[Tzu]

I wonder how many trucks never get this changed and then rack up 200,000 plus miles on the factory oil? Interesting with only 1,000 miles on it though.

 

[btanchors]

The magnet on the drain plug was pretty full of dark metallic sludge. There was even a large (1/8 inch) metal shaving of some sort within the sludge.

 

[19jacobob93]

I replaced the factory fill rear diff oil on my falcon about a month ago. Had about 206,000 km on it and it came out black and nasty! Gonna change it again in about a years time to get it pretty fresh