2004 Toyota Tacoma 3.4L V6 AMSOIL XL 5W30 5634 miles OCI

[benjamming]

My Dad's 2004 Toyota Tacoma 3.4L V6 automatic
AMSOIL XL 5W30 API SM
75% Highway driving
OEM oil filter
OEM air filter - last changed at ~ 30k miles
No make-up oil added
Sample taken Feb-2006
5,634 miles on oil - 2.5 months
~56k miles on pickup
Blackstone did this 1st UOA
Same oil & filter changed every ~ 5k miles since the 1st oil & filter change at ~ 5k miles.

Aluminum: 1
Chromium: 0
Iron: 4
Copper: 1
Lead: 5
Tin: 3
Molybdenum: 34
Nickel: 0
Manganese: 0
Silver: 0
Titanium: 0
Potassium: 0
Boron: 163
Silicon: 16
Sodium: 1
Calcium: 2446
Magnesium: 6
Phosphorus: 580
Zinc: 689
Barium: 0
Fuel Viscosity: 53.0
Water - 0.0
Antifreeze - 0.0
TBN - 2.2
Insolubles - 0.4
Flashpoint - 415°F

Blackstone's comments:
Universal averages show typical wear metals for an oil from this type of engine after about 5,600 miles on the oil. Your oil was in use about those same miles, and we found all wear reading well below average levels and in the correct balance to show normal mechanical parts inside. Silicon was bit over average, so you could check the air filter. The low insolubles - solids in the oil - shows good oil filtration. This oil had no fuel, moisture, or anti-freeze in it. The TBN read 2.2, so the oil still contained some active additive. Try 6,500 miles next time. Nice engine!

Oil was changed at sampling with AMSOIL XL 5W30 SM and a new OEM oil filter. Oil will probably be run ~7,500 miles next OCI.

However, I don't know why the oil thinned somewhat but still has a good flashpoint.

 

[SSDude]

Was this your first time using this oil in your car?

 

[Al]

Yea, serious thinning in this oil. But great numbers.

 

[Amkeer]

Decent numbers except for the lead at 5. I would make sure the air filter is changed at no more than 16000 miles. Ditch the oil filter and use Wix.

Daily Drives:
-2003 Toyota Tacoma PreRunner,2.7 liter, 4 cylinder, Mobil1 5w30 ODO 24600
-1995 Toyota 4-Runner,3.0 liter,6 cylinder, Mobil1 5w40 tsuv ODO 103100
http://community.webshots.com/user/amkeer

 

[Pablo]

Huge Boron. Mo, from?

Yes, thin. weird.

No additives?

 

[Steve S]

53 is still 30wt? Could the sample numbers be wrong.

 

[benjamming]

Amkeer,
Why would he want to ditch the oil filter? I have used Wix on my Pontiac and the insolubles were the same - 0.4. I agree that Wix is a fine filter, but I think the existing filter is doing well. What would you expect a Wix filter to improve?

No additives in gas or oil.

Should I ask for a retest of the viscosity?

 

[Amkeer]

Wix is alot better than the OTC Toyota brand. Better anti-drainback valve is one reason.