VEHICLE-----------------05 Toyota Tacoma, 4.0L, 6 cylinder, 4WD, AT
OIL---------------------Amsoil SSO 0w-30, older API SM formula
OIL ADDITIVE------------4 ounces Schaefers #132 Moly EP & 5oz LC20 initially & 3 oz LC20 total between oil changes. Added 4oz Steel Shield EPA apprx 400mi/4mos prior to oil sample
MAKE UP OIL--------------none
ENGINE OIL CAPACITY------5.5 quarts
OIL FILTER----------------Amsoil EAO57 (new #=EA15K51)
AIR FILTER----------------Amsoil EAA (100,00mi/4yr warranty, installed 5/9/08 at 24,011mi, cleaned at 35,144 miles)
MILES ON OIL/FILTER---------5,380
TIME ON OIL/FILTER---------2yr, 5+ months (apprx 1yr, + 5+ months too long)
MILES ON VEHICLE----------45,393
UOA by BLACKSTONE LABORATORIES
LAB COMMENTS: "...It's been several years since you sent a sample from your Tacoma, but things still look pretty good for your 1GR-FE engine. Most wear metals read at or below average, with the exception of iron. It's from steel parts and was just a little higher than average, but still not high enough to show a problem. It could be from some city driving, idling, or maybe towing or hauling heavy loads. The only mark we had was the low flashpoint, which shows 0.8% fuel in this sample. That's a harmless amount, so it's not a serious concern either. All in all, this is a good report."
WEAR METALS in PPM:
iron------------------16
chromium-------------0
nickel-----------------0
aluminum-------------3
copper----------------3
lead-------------------1
tin--------------------0
cadmium--------------n/a
silver------------------0
vanadium-------------n/a
CONTAMINANT METALS:
silicon-----------------18
sodium----------------7
potassium-------------3
MULTI-SOURCE METALS:
titanium--------------0
molybdenum----------3
Antimony-------------n/a
Manganese------------0
Lithium---------------n/a
boron----------------7
ADDITIVE METALS:
magnesium------------15
calcium----------------3239
barium-----------------0
phosphorus-------------640
zinc--------------------675
fuel %------------------0.8%
antifreeze%-------------0.0%
Water------------------0.0%
insolubles%-------------0.3%
SUS [email protected]
cSt [email protected]
flashpoint---------------370F
TAN--------------------n/a
TBN--------------------n/a
oxidation----------------n/a
nitration-----------------n/a
LUBE CHANGE-----------yes, 4:1 ratio Amsoil ATM10W-30/ASM 0W-20 + 4oz Schaefers #132 Moly EP, 4oz LC20, 5.5oz Steel Shield EPA. Installed magnetic drain plug.
LUBE FILTER CHANGE--------yes (AMSOIL EAO57, Donaldson P169071 o/s diameter slightly too large)
AIR FILTER CHANGE---------yes, new Amsoil EAA, which has been discontinued. Old filter seal deformed one end from previous poor install/re-install. Also, o/s rubber seal beginning to crumble & crack one side.
NOTES/COMMENTS: Iron is about 3 times higher than I'd prefer. Silicon, IMO, should be substantially lower. Hopefully, the new air filter & shorter OCI intervals will solve these issues. Denso long life Iridium plugs. WM Murphy USA premium gas w/FP+ added. Aprx 65/35 highway/city driving using mostly feather foot, hypermiling for 24-25mpg. Mostly short 11 mile trips once/week--sits unused apprx 6 days/week. Vehicle parked in o/s FL weather. 20-30sec warmup time, lately longer. Occasional light towing. Approx 7 beach days/stays in this OCI. Limit future oil change intervals to 1 year. I assume the fuel dilution is due to having used truck only to pull a couple stuck vehicles from yard on 2 separate occasions w/no miles driven, just prior to oil sample. And, I reckon I must be an additive/experimentation addict.
PREVIOUS UOA’s: posted here in previous years. Search feature hasn’t been working for me lately back past 1yr.
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