11 Traverse, AMSOIL OE5w-30 5.698 miles

Joined
Dec 13, 2002
Messages
2,197
Location
North Carolina
Posting for reference for other Traverse and LAMDA platform owners.
Code:
  Wear metals look great in this latest sample from your Traverse. Iron is all the way down to just 10 ppm, and 
other metals don't show signs of poorly wearing parts. If your engine is having any mechanical problems, the evidence 
isn't showing up in the used oil. The viscosity was spot on for a 5W/30, and no contamination from dirt, fuel, water, or 
coolant was present. The TBN was good at 2.1, and the TAN was 6.3 - some acidity. You could go up to 7,500 miles on 
the next fill. Iron might go up, but other metals should remain relatively steady. Give it a shot and check back.


OIL               AMSOIL OE 5w-30   OE 5w-30        OE 5w-30
MILES IN USE      5,698		      5,405	     10,168 
MILES             89,101	     83,405	     69,787   
SAMPLE TAKEN      07/28/14	     05/08/14	     10/17/13  

ALUMINUM          2		 	3	        6        
CHROMIUM          0			0		1        
IRON              10			17		75       
COPPER            1			1		4       
LEAD              1			0		0        
TIN               2			0		0        
MOLYBDENUM        94			73		69       
NICKEL            0			1		0        
MANGANESE         0			0		1        
SILVER            0			0		0                  
TITANIUM          0			0		1                 
POTASSIUM         3			5		2                 
BORON             60			53		32                
SILICON           9			11		41   	              
SODIUM            8			6		45                
CALCIUM           1891			1920		2189          
MAGNESIUM         8			9		12              
PHOSPHORUS        678			618		765              
ZINC              954			711		892            
BARIUM            0			0		0          
     
SUS Visc @210°    56.4			56.4		55.9
cSt Visc @100°c   9.19			9.19		9.03
Flashpoint In °F  375			375		335
Fuel %		  <0.5 			<0.5		1.5
Anitfreeze %	   0.0			0.0		0.0
Water %		   0.0			0.0		0.0	  
INSOLUBLES         0.1			0.3		0.2
TBN		   2.1			0.6		0.8
TAN		   6.3			5.3		5.7
 
Joined
Oct 16, 2010
Messages
2,095
Location
.
Now this is a great example of UOAs being useful. A 10,000 mile OCI with this engine/oil combo is too long and 6,000 miles looks just about perfect. OP: were you basing OCIs on the oil life monitor? Is this one of the engines where GM changed the oil life monitor algorithm to call for more-frequent changes because of timing chain wear? Has this been done to your car?
 
Joined
Oct 7, 2005
Messages
335
Location
Maryland
Originally Posted By: Danh
6,000 miles looks just about perfect.
No, still too long. Pay attention on TAN: it is MUCH higher than TBN.
 
Joined
Oct 16, 2010
Messages
2,095
Location
.
Originally Posted By: timeau
Originally Posted By: Danh
6,000 miles looks just about perfect.
No, still too long. Pay attention on TAN: it is MUCH higher than TBN.
OK. So despite wear metals looking great let's go to 3 months, 3,000 miles. That should be safe.
 

Rat407

Thread starter
Joined
Dec 13, 2002
Messages
2,197
Location
North Carolina
Yes the previous two fills were AMSOIL OE. This is a friends vehicle. They went by the OLM on that first oil change, it was down to 5%. It has not been reprogrammed. Not sure why, but will have to ask them. On our 11 Acadia the OLM is way shorter and I get down to 5% I'm right at 5k miles every time. When I changed the oil this last time the OLM was at 55%, the time before that it was at 47%. I try to keep in touch with them to keep it right at 5k mile oil changes. Their schedule and mine some times makes it hard but it is still easier for them to have me do it than to take it some where. Considering I pick it up at their work and drop it back off.
 
Joined
Oct 23, 2005
Messages
7,767
Location
North America
Yup, agree with 6k for this oil. Interested to hear for what type driving the vehicle is used. Is your buddy comfortable with the interval, and have you or he considered the XL or SS to go even longer?
 
Joined
May 28, 2010
Messages
225
Location
Los Angeles,CA
being a 2011. It has the Dexos requirement. So once they hit 100,000--- why wouldnt they just try Valvoline White Bottle dino? $16 for 5 qt jug. 5000 intervals- oil available at all Wal Marts. my 2010 with VWB.
 
Joined
Oct 7, 2005
Messages
335
Location
Maryland
Originally Posted By: Danh
OK. So despite wear metals looking great let's go to 3 months, 3,000 miles. That should be safe.
Wear metal means almost nothing. This is a least thing to pay attention. There too many other conditions (oil filter, for example). It will catch significant pieces of metal and provide you an excellent result. How do you think, what will be numbers of iron in UOA for this camshaft? Do you expect 1000 ppm? Or may be 2000 ppm?
 
Joined
Oct 10, 2008
Messages
19,699
Location
Sunny Florida
IMO this board routinely over values a UOA individually. Members here have had engines blow up while posting great UOA's. Their best value seems to be in trending, so get three or more on the same vehicle and you may spot something...
 
Top