02 Accord V6 AMSOIL 0W20 8840 OCI 90122 on car

[benjamming]

Code:


Oil used AMSOIL 0W20 Redline 5W20

Sample Date Jul-12-2008 Aug-17-2007

Miles on oil 8,840 10,022

Miles on car 90,122 73,105

Make-up oil 1.5 qt 1.5 qt

Oil filter Mobil 1 EP AMSOIL EaO

Air filter Napa Gold Napa Gold

Fuel adds DSFM FP3000

MPG 24.7 24.4

Lab Dyson Dyson



Wear Metals:

Iron: 13 17

Copper: 21 41

Tin: 0 6

Lead: 5 6

Chromium: 2 1

Nickel: 1 1

Aluminum: 3 6

Titanium: 0 0

Silver: 0 0



Additive Metals:

Calcium: 2963 2412

Magnesium: 17 21

Zinc: 874 1550

Phosphorus: 646 1314

Barium: 4 5

Molybdenum: 10 1007

Antimony: 0 0



Contaminant Metals:

Silicon: 21 14

Sodium: 13 42

Boron: 8 1

Potassium: 0 0

Vanadium: 0 0

Manganese: NT NT



Physical & Other Tests:

Viscosity 40: 46.0 58.6

Viscosity 100: 8.0 10.0

TAN: 3.4 4.01

Flashpoint: 310 320

Oxidation: 67 175

Nitration: 13 15

KF Water: 773 519

TBN: 4.2 3.1

Fuel: 1.38 1.29

Soot: 0 0

Glycol: 0 0

VI: 147 156

Sulfate byproduct: 58 125


This is the 2nd drain interval for AMSOIL 0W20. Previous UOA is here. It is also the 2nd interval for the same Mobil 1 oil filter.

I am now doing an ARX cycle.

DSFM = Dyson Secret Fuels Mix
Every tank of gas (Shell) was filled up at the same pump. There were 25 fillups with 12.238 minimum gal & 16.123 maximum gal fillups.

Air filter (Napa Gold) was changed at ~ 80k & again at ~ 90k miles.

Plugs were changed to Denso Iridium ~ 75k miles.

 

[Taylor]

still had some life, SI is up a little. Fuel a lil high, looks great though. Goes to show you dont need high levels (above .08% by wt) of ZDDP to prevent wear.

 

[OVERKILL]

What's up with the copper? Looked "high" on the Redline run?

 

[KA426]

I think Redline is more of a race oil. I don't think it's really intended to go several thousand miles.

 

[KA426]

I think Redline is more of a race oil. I don't think it's really intended to go several thousand miles.

 

[KA426]

Sorry for the double-post.

 

[glennc]

I looked at your linked post and the trending is a bit odd. Here are the numbers for sequential analyses, which go Amsoil, GC, GC, Redline, Redline, Amsoil, Amsoil:

Iron 9,9,9,11,17,10,13
Copper 30,24,25,19,41,17,21
Tin 4,1,0,0,6,0,0
Lead 7,40,18,12,6,5,5
Chromium 1,1,0,1,1,1,2
Aluminum 3,2,3,2,6,3,3

The only significant variances I see are an increase in lead and subsequent downward trend ("particle streak?"), a spike in metals on the second run of Redline, and this run being right about average for all metals other than lead.

The second Redline run was the only run that was above 7-8k miles, at 10k+. Even so I wonder if there was some unusual event or contamination that made that sample test so much higher than the others, almost across the board.

Other than those things the numbers are actually very consistent, which leads me to believe the second Redline run was somehow anomalous.

 

[Gary Allan]

Quote:
I wonder what has been happening with the lead?


Red Line can sometimes play havoc with its aggressive (Oggresif-Crock Hunter RIP) add pack. Disruptions have occurred a few times over the first couple of OCI's in some engines.

 

[badtlc]

Originally Posted By: OVERK1LL
What's up with the copper? Looked "high" on the Redline run?


leeching from the Group V base. It would trend down with consecutive runs.

 

[RI_RS4]

Glenn

You cannot compare the Dyson analysis numbers directly to the Blacksonte numbers. They use two different methods. Dyson uses Rotating Emissions Spectroscopy, which has a larger particle size limit. It "sees" more particles. Blackstone uses Inductively Coupled Plasma (ICP) Spectroscopy. If two identical samples are given to Blackstone and Dyson, Dyson will often show higher metal numbers, because it is analyzing a wider range of particle sizes.

 

[buster]

In looking at just the two Dyson reports above, looks like a wash to me. Not much of a difference.

Ben, do you have a preference between these two oils?

 

[INDYMAC]

Here is a good example of the differences in wear metal detection between labs, not to mention the other stuff:

http://www.bobistheoilguy.com/forums/ubb...true#Post979506

 

[benjamming]

buster,

I liked the AMSOIL slightly better.

Thanks RI_RS4 and INDYMAC for pointing out that you can't compare between Blackstone and Dyson's #s. I intenionally didn't include Blackstone #s for that reason. I also started to not even link to the past report. A number is not just a number.

I have a case of RLI 0W20 & AMSOIL EaO oil filters that will be used after the conventional 5W20 ARX clean & rinse cycle.

 

[Jim Allen]

One thing that jumped out at me was the difference in viscosity @ 100. The Redline was well into SAE 30 territory, while the Amsoil was at the upper end of SAE 20. Redline lists the 5w-20 viscosity at 9.1 cSt @ 100, so it thickened a bit at 10K miles.

 

[Tones]

Silicon looks high to me with Chromium, Nickel also showing up. I would run a 30 weight b/c of the fuel dilution.

 

[benjamming]

Oil weight doesn't really have anything to do (in this instance) with how well the oil will hold up. It's more chemistry based. The oil isn't 'thinning out'.

 

[Tones]

Just to clarify, the silicon is a seperate issue that does not have to do with the fuel dilution and needs to be addressed. I disagree that the oil is not "thinning out" by fuel dilution (thus the word dilution). The Amsoil does seem to handle the fuel dilution well, but not all oils do. IMO the RL run you made would have benefitted from a higher starting viscocity and a lower OCI.

 

[benjamming]

Agreed. My terminology probably isn't the best. When I think of 'thinning out', with out being the word meaning out of grade.

 

[double vanos]

How the flashpoints? On both oils they were, well, lousy! See lots of cheaper oils that are closer to 400.

But then, I don't really read these UOA's as well as other people do (I don't begin to know my stuff as well as others here....). I really thought Redline FP would be quite high.

 

[Gary Allan]

That's a closed cup flashpoint test. It's always lower. Those are rather respectable.