This is my first UOA. Montero SR 3.5 DOHC purchased new in 1994, garage kept. Oil changed religiously every 3,000 or once a year. This is my first PU, prior was Royal Purple, Mobile 1, and for many years Valvoline Maxlife.
This is not my DD. Live in the desert southwest, went to Silverton, Ouray, Teluride, Co driving the switchback trails [Imogene, Engineers Pass, Black Bear etc] at 12,000 foot plus [severe service]. Engine started to overheat water boiled into overflow 2x. Needle did not go into the red. Never ever over heated prior to this. Did these trails multiple times last 8 years with no problems. Engine immaculate, maintained with all OEM parts etc. Does not burn oil.
Opinions appreciated. Will do another UOA. It will take at least a year.
Have Magnafilter over Platinum oil filter, in addition to Gold Plug. Both had minute amounts of FE. Concerned about FE, However I am a novice. Blackstone seemed concerned.
*Sample set Priority Mail, you won't believe what happened! Thank you
Code:
OIL PU 10W30
MILES IN USE 4,040
MILES 120,811
SAMPLE TAKEN 08/14/14
ALUMINUM 3
CHROMIUM 0
IRON 33
COPPER 6
LEAD 3
TIN 0
MOLYBDENUM 56
NICKEL 0
MANGANESE 2
SILVER 0
TITANIUM 2
POTASSIUM 7
BORON 49
SILICON 11
SODIUM 100
CALCIUM 2380
MAGNESIUM 2
PHOSPHORUS 687
ZINC 826
BARIUM 0
INSOLUBLES 0.3
WATER 0
FLASHPOINT ºF 430
SUS VIS 210ºF 59.7 67.7
cSt @ 100C 12.11 12.33
TBN 4.0