2003 Infinit G35 Coupe, V-6, Amsoil 0w/30, 2078 miles UOA

[silent06]

Gentlemen,

This was my first analysis through Blackstone. They did not provide any additional information. I purchased the Dyson analysis package, so may be that is why they didn't comment.

Running Amsoil SDF-13 oil filter and TS-74 Flowzair air filter. I also have added Amsoil Perfomance Improver at every 1000 miles traveled on the engine. Additionally, this engine has been filled with Amsoil 0w/30 since the date of purchase. I am a little concerned about the high copper and silicon compared to previous analysis I have seen on other G35 and 350z engines. Could the engine still be breaking in? So, what are your overall thoughts?


MI/HR ON OIL 2078
MI/HR ON UNIT 14,721
SAMPLE DATE 1/3/2004


Equipment Make Infiniti
Equipment Model G35 3.5L V-6 280 HP
Fuel Type Gasoline
Oil Use Interval 2,078 miles
Oil Type & Grade Amsoil Series 2000 0w/30
Make-UP Oil Added 0 quarts

Aluminum 2
Chromium 1
Iron 9
Copper 30
Lead 5
Tin 1
Molybednum 0
Nickel 0
Manganese 0
Silver 0
Titanium 0
Potassium 0
Boron 52
Silicon 26
Sodium 1
Calcium 2360
Magnesium 786
Phosphorus 951
Zinc 1222
Barium 0


SUS Viscosity at 210 F. 66.2
Flashpoint in F. 415
Fuel % Antifreeze % 0
Water % 0
Insolubles % 0.4
TBN = 7.4

[ January 13, 2004, 08:10 PM: Message edited by: silent06 ]

 

[Terry]

silent06, your interpretation is in the "email".

Thanks,


Terry

 

[Al]

Well-Terry will tell you everything you need to know. You will be more than well pleased. I'm sure the viscosity is high due in part to the insolubles. Silicon is probably not a problem. Those engines typcally show fairly high lead.

 

[Ken4]

You should really go back to OEM air filters, your silicon is pretty high for just 2k miles.

 

[TooSlick]

The 0w-30 formulation has 4 ppm of silicone as an antifoam agent, and this is a new engine that is still leaching silicone from the seals and gaskets. So, I wouldn't sweat the silicon at this point ...

As a general comment, it is very difficult to get accurate oil analysis results after only 2k-3k miles, due to the variability in the tests. For example, spectrographic wear metal analysis is only good to within +/- 3 ppm. So your actual iron level could vary a lot from the result you see. I'd run this oil for at least 6000-7500 miles and then test it, in order to get more accurate data. In a new non-turbocharged engine I will personally run Amsoil for 10k-12k before thinking about testing it for the first time and never bat an eye ....

Very high initial copper wear in these high performance Japanese V-6 engines is normally leaching from the core of the oil cooler and is nothing to be concerned about. I'd expect the wear rate of Cu to drop dramatically once you have over 30,000 miles on this engine. You see this same thing in the Honda/Acura V-6 engines if you go and look at some of the UOA's that have been posted in the last year.

I've had excellent results with the Amsoil filters - provided they fit well in the housing and are correctly oiled. Too much oil is generally worse than too little, as the extra oil can tend to coat the MAF sensor; causing the engine to run rough. I'd blot a new Amsoil pre-oiled filter a bit before installing it. I am going to try the flowzair filter in my toyota in the near future, since I like to test everything I sell ....

This oil is working fine,but the less expensive Amsoil 5w-30/10w-30 is so good these days, you might just want to use that for these shorter drains of < 12,000 miles....

Tooslick
www.lubedealer.com/Dixie_Synthetics

 

[silent06]

TooSlick,

On Amsoil site, they state the filters are centrifuged to distribute and remove excess oil. Do you blot the Amsoil filters as a precautionary measure?

You are the second person to mention the copper as it relates to the oil cooler. With the assistance of Terry, we will attempt to stabilize the iron and leaching of the silicon and copper over the next 10,000 miles.

 

[silent06]

Gentlemen,

Here are the results of my most recent UOA. The oil was changed to due to a service advisor's error. With advice given to me by TooSlick, I also have gone from a SDF-13 to a SDF-20 oil filter at this oil change interval. I would like to thank Terry Dyson for his expert knowledge and assistance in securing these results.


MI/HR ON OIL 5,340
MI/HR ON UNIT 20,061
SAMPLE DATE 3/15/2004


Equipment Make Infiniti
Equipment Model G35 3.5L V-6 280 HP
Fuel Type Gasoline
Oil Use Interval 5,340 miles
Oil Type & Grade Amsoil Series 2000 0w/30
Make-UP Oil Added 0 quarts

Aluminum 1
Chromium 1
Iron 6
Copper 11
Lead 0
Tin 0
Molybednum 0
Nickel 0
Manganese 0
Silver 0
Titanium 0
Potassium 0
Boron 31
Silicon 13
Sodium 2
Calcium 1800
Magnesium 648
Phosphorus 787
Zinc 920
Barium 0


SUS Viscosity at 210 F. 62.7
Flashpoint in F. 425
Fuel % Antifreeze % 0
Water % 0
Insolubles % 0.4
TBN = 5.5

[ March 16, 2004, 11:39 PM: Message edited by: silent06 ]

 

[Pablo]

WOW - that's a nice improvement! Was Terry worth it or what?

Also, I acknowledge TS's comments about thee copper and the air filters.

Maybe I missed it, but same air filter or ????

 

[Bror Jace]

I was thinking the same thing. Is this the same air filter or not?

I've been thinking about an aftermarket intake for my '03 Spec-V 2.5L but have so far decided against one. Going to replace my filter this spring ... gonna stick with a normal replacement element from Purolator or Wix.

Wear indicators for your G35 have dropped substantially. Everything looks really good.

--- Bror Jace

 

[buster]

silent06 nice report. I don't mean to be the negative one here, but these engines, like the Subarus and Toyotas wear nicely. Take a look at the Toyota UOA with 7k miles on it and you'll see what I mean. You could easily get this type of report using a ASL/ATM, German Castrol or even a Motorcraft Oil in my opinion for 50-70% less money. These lower cost alternatives would also be more ideal if your only draining every 5k miles or so. I'm assuming Terry suggested alternatives with you as well. ZDP is very low in this sample.

[ March 17, 2004, 05:35 PM: Message edited by: buster ]

 

[TooSlick]

The primary benefit I've seen with the 0w-30 is improved fuel efficiency. I had used the 10w-30 for ten years - in two Audi's and a VW - prior to the release of the Series 2000. I picked up about 3% in fuel efficiency in both my Audi 100 and VW Jetta with the S2000, compared to the ATM formulation.

The other thing I've noticed in 4/6 cylinder engines is better TBN retention and less oxidation with the S2000, again compared to ASL and ATM. I have to say however, that the S3000, 5w-30 beats all the Amsoil ACEA "A3/B4" rated formulations when it comes to maintaining its' original physical/chemical properties. It's their most durable gas engine lube, followed by their 10w-40,which is also SL/CI-4 rated.

FWIW, If I had a domestic V-8, I'd run the 10w-40 before I'd run the 0w-30/5w-30/10w-30 ....

 

[silent06]

Pablo,

I can't begin to thank Terry enough. I couldn't believe the results of this UOA. To top it off, Terry is trying to further optimize these results. I am completely satisfied, but Terry's goal is a near 0 wear engine. He is a perfectionist at his best!!! TooSlick was dead on about the copper and silicon. Thanks TS for the comments and the advice on the oversized filter!


Pablo/Bror Jace,

Yes, it is the same air filter from the initial sample taken on 1/3/2004


Another interesting note is the engine is able to maintain peak fuel efficiency at higher MPH!

 

[jthorner]

I must be missing something. Did anything change from the first to the second oil analysis other than the oil filter size? What made the lead wear drop to zero?

John

 

[Terry]

John, we fined tuned the oil for the engine and 06's operating situation!

Terry

 

[TooSlick]

Silent6,

Thanks for the kind words ....

I'd go to a 7500 mile drain interval - that should be fine here.


TS

 

[silent06]

Gentlemen,

Here are the results of my most recent UOA. Running Amsoil SDF-20 oil filter and TS-74 Flowzair air filter. The moly shown in this sample is due to the service error mentioned in my previous post. My only concern is the increase in silicon and lead. I just received the report and await Terry's response to it. So, what are your overall thoughts?


Round 3

MI/HR ON OIL 10,382
MI/HR ON UNIT 30,444
SAMPLE DATE 08/21/04


Equipment Make Infiniti
Equipment Model G35 3.5L V-6 280 HP
Fuel Type Gasoline
Oil Use Interval 10,382 miles
Oil Type & Grade Amsoil Series 2000 0w/30
Make-UP Oil Added 0 quarts

Aluminum 2
Chromium 1
Iron 7
Copper 11
Lead 7
Tin 1
Molybednum 6
Nickel 0
Manganese 0
Silver 0
Titanium 0
Potassium 0
Boron 12
Silicon 23
Sodium 2
Calcium 1690
Magnesium 458
Phosphorus 703
Zinc 832
Barium 0


SUS Viscosity at 210 F. 63.2
Flashpoint in F. 375
Fuel % Antifreeze % 0
Water % 0
Insolubles % 0.4
TBN = 2.3

 

[Amkeer]

I would stick with 7500 mile intervals. Your lead and other metals are creeping up with this 10,000 mile OCI.

Daily Drives:
-2003 Toyota Tacoma PreRunner XtraCab, 2.7 Liter , Mobil1 Synthetic SS 5W-30.
ODO 10250Miles.
-1995 Toyota 4-Runner 3.0 V6, Mobil1 Synthetic SS 10W-30.
ODO 91900 Miles.
http://community.webshots.com/user/amkeer

 

[Jay]

Interesting. Iron and Copper are halved in this report, but lead is a problem. It's possible that you have abrasive wear, because silicon appears to be elevated for the number of miles on the car. If that's the case, the dirt is entering through the oil cap, PCV valve, or some path other than the air intake.

 

[Al]

If I were a betting man I would bet there is some fuel dilution. (even though it didn't show up) and this much hotter weather/ Everything (except the lead) was fine (except for the silicon). Sorta strange.

Oh and Nice Thread btw