-
Recently Browsing 0 members
- No registered users viewing this page.
-
Forum Statistics
250.3k
Total Topics2.7m
Total Posts -
Member Statistics
342,726
Total Members8,960
Most Online
-
Who's Online 7 Members, 0 Anonymous, 748 Guests (See full list)
-
Latest Articles
-
Posts
-
.thumb.JPG.2c573de60d3a3a4407c7d92298db46dd.JPG)
By Grumpy Bear · Posted
Engine Wear and ISO 4406 1.) Cold Starts. 2.) High Particle Count. 3.) Low operating temperature viscosity and high low temperature cranking viscosity. 4.) Depleted AW, Friction and Acid packages. 5.) High engine load. https://me.caltexlubricants.com/en_me/home/learning/from-chevron/heavy-duty-diesel-vehicles-and-equipment/The-Importance-of-Clean-Engine-Oil-and-Its-Impact-on-Equipment-and-Business-Performance.html High particle counts have five sources. 1.) They are manufactured within the engine. Both wear debris and amalgamation of degradation products and combustion driven soot (worse in GDI). 2.) They are ingested via intake air. Ever hear the best oil filter is a good air filter? 3.) They are entrained in the fuel. 4.) This one is insidious. They are introduced in 'fresh oil'. 5.) They are introduced during the oil change. ISO 4406 is the test that measures and quantifies the combine effects of all of the above particle related issues. You can mitigate your way into multiples of engine life by being attentive to them all. https://www.hyprofiltration.com/blog/is-new-oil-clean (from the link above) [Quote] What Is the Recommended ISO 4406 Cleanliness Code for New Oil? A good upper limit for new oil cleanliness is 16/14/11 (ISO 4406). Typical new oil usually has ISO codes of 19/17/15 or worse, which is far too dirty for sensitive components. This can be a major cause of degradation and premature failure. [Close quote]. Source of graph: Machinery Lubrication (GM Study) -
-
-
Hasn't come up in the 3 gm forums I follow. And only gm knows the frequency of failure of that part. LMG, you want a recall so it's replaced for free... -
You need a better code reader/scanner. You are missing codes. Did the dealer give you a copy of the SAVI scan from that visit? If the fluid hasn't been changed, change it. Shudder will likely go away.
-
-
GM-Trucks.com Clubs
-
Black Truck Club
Open Club · 612 members
-
White Truck Club
Open Club · 380 members
-
Canadian Owners Club
Open Club · 282 members
-
Red Truck Club
Open Club · 156 members
-
diesel 3.0
Open Club · 279 members
-
Texas Owner's Group
Open Club · 371 members
-
NorthSky Blue Club
Open Club · 118 members
-
Midwest Owner's Group
Open Club · 212 members
-
2015 Custom Sport Club
Open Club · 5 members
-
GM Snow Plowing Club HD
Closed Club · 14 members
-
-
Popular Contributors
-
Recommended Posts
Archived
This topic is now archived and is closed to further replies.