06 Nissan Titan 5.6L V8 GC 0w-30 3754 miles

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Arlington, TX
Engine Make/Model: 2006 Nissan Titan V8 5.6L
Oil interval: 3754 miles
Engine mileage: 56679 miles on odometer
Oil/oil filter used: 6.7 qts M1 0w-40 & Pure1 filter
Makeup oil: none
Oil lab: Blackstone
Oil samples was taken on 5-31-08

The left is the most recent and the right is from my last three samples:
(GC 0w-30) (M1 0w-40) (GC 0w-30) (M1 5w-30TSUV)
5-31-08 9-12-07 10-31-06 5-24-06
miles on oil: 3754 2543 3006 2569
odometer: 56679 45386 21058 11634
Aluminum: 2 2 1 2
Chromium: 1 1 0 1
Iron: 6 7 3 6
Copper: 1 1 2 2
Lead: 6 1 1 2
Tin: 2 0 0 0
Moly: 4 68 1 75
Nickel: 0 0 0 0
Manganese: 0 0 0 0
Silver: 0 0 0 0
Titanium: 0 0 0 0
Potassium: 2 0 0 0
Boron: 5 118 0 38
Silicon: 15 13 19 12
Sodium: 7 8 3 8
Calcium: 1979 2557 2736 2173
Magnesium: 552 14 209 11
Phosphorus: 962 790 851 571
Zinc: 1286 917 964 672
Barium: 0 0 0 0

TBN: n/a 7.5 5.7 4.8
SUS visc 210F: 63.8 67.2 65.5 59.1
cST visc 100C: 11.28 12.21 11.74 9.95
Flashpoint: 390F 395F 385F 390F
Fuel: Antifreeze: 0 0 0 0
Water: 0 0 0 0
Insolubles: 0.2 0.2 0.1 TR

Blackstone: Thanks for the note about changing your air filter. We'll likely see silicon lower in the next sample. At 56,679
miles the 5.6L that powers your Titan continues to wear very well. This is the longest oil run that we've seen from your
engine and other than the increase in lead very little change was found. Lead at this level isn't a problem and we
wouldn't be surprised if it retreated in the next sample. If you did any heavy towing or hard driving on this fill that would
explain the increase. No problems were found.

My thoughts:
 
For clarification, this is indeed GC 0w-30 (the M07 batches), not the Mobil1 0w-40 that i copied and forgot to edit out. I've been driving fairly hard lately, i would probably admit to driving 80mph on the freeway to work almost everyday for the past month or so. The GC 0w-30 uoa of 2006 were mostly green GC with about a qt of gold GC.
 
yeah you could def run longer or start using cheaper oil.
 
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Thanks for all the inputs so far. i didnt feel the need to get a TBN based on my previous UOAs. I would assume the TBN would be either in the high 4's or around 5 but i did really beat on the oil by driving kind of hard for this sample. Any reason to worry about the increase in Tin and Lead?
 
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Random ticks. Just a spike in noise. Go longer and still sleep well at night. What's your time frame here? There has to be some gaps in the UOA testing.
 
Originally Posted By: Al
You could be going at least 2 to 3 times further on an oil change.
There are so many that swear syn oil use saves money.
 
-I could extend my oil drains a bit longer but i drive fairly hard nowadays. Also not to mention alot of hauling. This truck is a tough beast to tame, can't help it much at times but to rev her up.

-Gary, what do you mean by my time frame? Well i don't know if this is the answer you wish to seek but I usually change out my oil around every 3-4k miles (which is around every 2 months for me due to my drivings). I plan on doing UOA every 10-15k miles. When i do the UOA sampling, i usually take the sample during the middle part of the drain. But for this most recent one, i took it when it was near the end part of the drain.
 
Sorry to say this, but gas is $4/gallon, and you're driving a V-8 80 mph on the highway? You must have a LOT of money to burn!

:p
 
That's why my nickname is "highroller" hehe jk. Honestly, i feel i should drive slower. Gas prices aren't coming down anytime soon and im not getting a pay raise anytime soon either.
 
Originally Posted By: addyguy
Sorry to say this, but gas is $4/gallon, and you're driving a V-8 80 mph on the highway? You must have a LOT of money to burn!

:p
the oil changes prove it!!!
 
I would go back to the M1 0W40 as it did better over all. Your lead level while still low is 6 times higher then it was with M1 0W40. While the total number is not that significant the 6 fold increase in it is. Yor lead number is not equal to tyour iron number which tells me that this engine likes something a tade thicker then the GC 0W30. So either go back to the M1 0W40 or try RTS 5W40.
 
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