M1 75w90 2000 Front Diff 120k

[cheetahdriver]

my next 4 posts will be prime examples of how smart (ok, never been SUCCESSFULLY accused) people can do stupid things. when i bought the Tundra in 2000, i had all of the oils shifted to syn at 3k. then i went along thinking i had it whupped until 100k, got busy and let things go to 120k. while i probably didn't do much damage, i went way over what i should have.

Code:


OIL M1 75w90

MILES IN USE 120k

MILES 124k

SAMPLE TAKEN



ALUMINUM 2

CHROMIUM 3

IRON 224

COPPER 1

LEAD 1

TIN 0

MOLYBDENUM 5

NICKEL 0

MANGANESE 11

SILVER 0

TITANIUM 1

POTASSIUM 1

BORON 190

SILICON 55

SODIUM 7

CALCIUM 48

MAGNESIUM 1

PHOSPHORUS 2125

ZINC 273

BARIUM 4



INSOLUBLES 1.1

WATER 0

FLASHPOINT ºF 405

SUS VIS 210ºF 71.1

cSt @ 212ºF 13.24

TAN 1.9

 

[Dieseldoctor]

most owners use the stock fluids non-syn 80w90 for life so... i doubt it hurt anything.. wonder how this compares.. not many uoa on gear oil

 

[unDummy]

Front diff is looking good. You ever use the 4wd?

Comparison:
http://www.bobistheoilguy.com/forums/ubbthreads.php?ubb=showflat&Number=1694215

 

[cheetahdriver]

the 4WD is used intermittently (10% or less i would guess) for snow/mud conditions. when it is used (last years snow/ice it stayed engaged for 13 days straight) it is used alot, but in comparison to the whole vehicle, not much.

most of the miles here are highway miles.

 

[buster]

Not bad for 120k miles.

 

[dnewton3]

Bored, were we, Buster? Dragged up a 3.5 year old thread?