High Copper and Silver Reported in latest oil report

[frank1]

Just received my oil report back from Blackstone for one of my 03's. The report showed a 11 in copper (5 is the universal avg. ) and a 5 in silver (a 1 is the universal Avg. ). All other numbers where okay. Blackstone recommends another sample at 10,000 miles. Oil is Amsoil Sig. 5w/30 with Amsoil extended oil filter. I did change the oil and filter. The oil had 10,950 miles, truck now has 140,010 miles on it. Does not burn any oil between changes. I do oil changes every 10,000 miles or within a year, which ever comes first. The oil that was sampled was eleven months old. I will try to post a copy of the report, by the way, TBN was very good (7. 3). Thanks for any help. Frank

 

[Prairie Dog]

Why do you use such thin oil instead of the recommended 15-40?

Scott

 

[BLNRAY]

we do oil samples every change in the shop i work in somtimes a sample will show high content of something and the very next will show normal,i would wait until the next sample before i worried about repairs.

 

[AH64ID]

The Amsoil HDD 5w-30 is a very thick 30wt, more like a thin 40wt. I ran it for a change or two, but I didn't like the results. I get better UOA with AME 15w-40.

Those numbers are no where near high enough to think twice about, wait until the next sample.

If your paying Blackstone for TBN why not use OAI Testing, it includes TBN and is recommended by Amsoil and Cummins.

 

[amsoilman]

Wear-metal particles — iron, chromium, nickel, aluminum, copper, lead, tin, cadmium, silver and vanadium — also come in a variety of sizes. The wear-metal particles reported in a regular oil analysis will be less than 5 to 8 microns in size since that is the upper limit for particles caused by normal wear conditions. Wear particles larger than 8 microns found in the engine oil suggest a mechanical condition in the engine.
Keep in mind, copper could be a "Leaching" process from the oil cooler. I have seen oil analysis reports that were much higher than yours, referring to your copper and silver readings. Silver is one element that the Cummins engine does not have! As far as Blackstones "universal" averages, that is just an average of a specified number of analysis that they have performed over a given amount of time.

 

[frank1]

Thanks for all your replies. Won't worry about it for now, will take another sample in 10,000 miles.

 

[AH64ID]

I would look into the AME at your next change, I got better wear out of it and it's cheaper.