Castrol 0w-30, 7214, Toyota Tacoma 4.0

[Gregory]

Code:


Oil TYPE GC 0w-30 GC 0w-30 ATM 10w30 ATM 10w30 M1 EP 10w30 M1 EP 10w30

MI 7214 7070 6524 4939 4565 8158

MI total 92176 78262 71192 63897 58376 53791

Sample Date 3/27/2010 4/25/2009 11/1/2008 6/2/2008 3/1/2008 11/28/2007

Add Oil 0 0 0 0 0 1qt



Aluminum 6 5 3 3 3 3

Chromium 1 1 0 0 0 0

Iron 26 33 8 10 13 18

Copper 1 2 2 1 1 1

Lead 11 12 0 2 3 7

Tin 2 5 0 0 1 0

Molybdenum 1 8 46 59 71 76

Nickle 0 0 0 0 0 1

Manganse 1 1 0 0 0 0

Silver 0 0 0 0 0 0

Titanium 0 0 0 0 0 0

Potassium 2 3 0 1 2 2

Boron 2 14 75 170 49 61

Silicon 13 16 20 14 7 13

Sodium 12 14 6 5 4 6

Calcium 1875 1750 2947 3659 2296 2401

Magnesium 487 404 11 14 12 11

Phosphorus 931 772 626 770 685 662

Zinc 1213 964 773 975 838 814

Barium 0 0 0 0 0 0



SUS Vis @ 210°F 65.6 65.6 60 60.6 59 58.7

cSt Vis @ 100°C 11.77 11.78 10.21 10.38 9.93 9.85

Flashpoint °F 360 380 390 385 385 375

Fuel% 1.3
Antifreeze% 0 0 0 0 0 0

Water% 0 0 0 0 0 0

Insolubles% 0.3 0.4 0.5 0.4 0.2 0.4

TBN 2.8 3.3 2.3 1.9 3.4 2.7


Oil was not up to operating temp, just a short 7 drive to post office (stop and go) Moisture visible under oil cap.

 

[2oldtommy]

This engine doesn't like GC IMO. Look at that increase in both iron and lead since your change to GC. FWIW--Oldtommy

 

[Gregory]

I noticed that as well, going to have to find another Autozone Special I can run. Maybe PP or go back to M1. Only have 1qt left of the 0w-30, I can use that as a topper oil.

 

[mechanicx]

Your TBN is getting dropped sometimes after as low as 4K. Looks like 7-8K is a sensible limit. What is the recommended oil viscosity and OCI?

 

[21Rouge]

Originally Posted By: 2oldtommy
This engine doesn't like GC IMO.


Have you seen GC used successfully in a Tacoma 4.0 i.e good UOAs?

 

[cchase]

Why is silicon so high on these?

 

[lonestar]

Am I reading this wrong or did the runs of Amsoil ATM have the lowest TBN between the 3 oils used? I believe ATM is a 12/mo - 25K oil but in this application I do not think to it would go that distance. Again, am I reading this wrong?

 

[Mokanic]

Originally Posted By: cchase
Why is silicon so high on these?


It takes about three tubes of RTV sealer to seal these things up at the factory.

 

[BigJohn]

Holy Iron Levels Batman!!!!

Why in the heck is GC producing such high levels?????

 

[JSP]

Looks like you or your engine are tough on oils. Since you tried GC 0W-30 have you considered trying M1 0W-40?

 

[coachditka]

I think there was a UOA here for a Toyota truck that had great results with M1 5w30 EP.

 

[Gregory]

5w-30 and 5k is the stock oci.
Main difference on the GC oils is I am runing and amsoil EA air filter, before that it was a stock Toyota filter.

 

[Bullet]

06 Tacoma V6 Halvoline Synthetic 5w-30 UOA

See my high iron level at 7K miles and the TBN. I think these engines are hard on oils.

 

[Gregory]

AMSOil and M1 both gave better reports. but millage was less. I should do a ppm/per 1k mile driven.

 

[Gregory]

Bullet whats the specs on your taco.
Mine 05 double cab, 4x4, short box, standard shift.

 

[addyguy]

I think overall, the ATM gave the best results - I'd go back to that.

 

[BigJohn]

I have PU 5w20 in my 2007 T4R with the 4.0L. Now I am a bit worried. I think after our 5k/6mon OCI, I will get the oil tested.

For what it is worth, the oil feels and sounds and the engine responds really, really well.

 

[Brian Barnhart]

The high fuel level on the latest sample stands out. Focus on understanding that first.

 

[Gregory]

Brian, my best guess cold engine not enough time to "burn off"

 

[Bullet]

Originally Posted By: Gregory
Bullet whats the specs on your taco.
Mine 05 double cab, 4x4, short box, standard shift.


2006 prerunner double cab automatic v6. There is another post I made using 10w30 semi synthetic Tropartic which the TBN was reduced quick.