2010 Traverse, Valvoline Maxlife 5W-30, 4,909

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225
Location
Los Angeles,CA
This is for my 2010 Traverse. Oil sample taken at 152,653. Ive included all of my UOA. My interest in the UOA- is to monitor for elevated iron levels-- pointing to timing chain wear. As can be seen the engine now uses more oil. I check the oil levels weekly and make sure its stays up. Seems that folks with these engines- who do not monitor oil levels-- end up with worn chains. The current oil now in use is Valvoline Max-life 5W-30 for high mileage engines. All other UOA are Valvoline Conventional 5W-30. I began to transition over to Maxlife with previous oil changes.... something like this. 3 qts VWB and 2.5 qts max-life 2 qts VWB and 3.5 qts max-life 1 qt VWB and 4.5 qts max-life 5.5 qts maxlife. Im guessing carbon buildup. Pieces have broken off and scratched the inside of the cylinders causing zebra stripping- leading to oil use. The vehicles current weekly driving is--- 5 mile drive in the AM- 15 min at most. Stop and go to the train station. 5 mile drive in the PM- 15 min. Stop and go. Weekend drives are a little farther. [Linked Image from i837.photobucket.com] [Linked Image from i837.photobucket.com]
 
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1,514
Location
Ohio
FYI, even if you do maintain the oil level you may still lose the chains. I had a 2010 Traverse, the chains made it to about 170,000. Changed every 5,000 when I learned about the problematic timing chains, still managed to let go.
 
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34,389
Location
NJ
With chain wear, ILSAC GF-6 will add the Sequence X which is a test for chain wear. Short-draining the oil will also help.
 

rbarrios

Thread starter
Messages
225
Location
Los Angeles,CA
Originally Posted by buster
With chain wear, ILSAC GF-6 will add the Sequence X which is a test for chain wear. Short-draining the oil will also help.
any more info on this Sequence X?
 
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