Amsoil ASL 5W30,6256 miles,2005 Silverado 5.3

[hd2002]

This run is 50% short trips and 10-15 minute warm up during winter months. Air filter was replaced with EAA at 26,220 miles.
Oil filter is a EAO32. UOA was done by OAI. I use a 50/50 of FP Plus and Bio-Plus injector cleaner at every fill up.




Miles on oil: 2380/1503
Time on oil: 1 year
Oil: Amsoil Castrol/ASL 5W30/ASL 5W30
Make up oil: 16 oz.
Miles on oil: 2380/1503/6256

Iron 18/9/33
Chromium 2/2/1
Lead 12/6/10
Copper 65/32/60
Tin 2/0/1
Aluminum 5/4/4
Nickel 0/0/1
Silver 0/0/0
Silicon 9/57/25
Boron 3/239/180
Sodium 70/27/6
Magnesium 14/19/0
Calcium 1946/3177/2893
Barium 0/0/0
Phosphorus 596/917/630
Zinc 596/957/746
Molybdenum 43/60/55
Titanium 0/0/0
Vanadium 0/0/0
Potassium 212/0/1
Fuel 1.4%
Visc100 9.88/9.72/9.8
Water 0/0/ Coolant Yes/No/No
Nitr NA/5.0/16
Oxid NA/1.0/11
TBN 9.88/6.63/9.8

I am struggling to keep silicon down, I cleaned air filter at last OCI. I have flushed since coolant leak and found wire loom pinched in air box. I did nothing with air filter this OCI. High copper, iron a little high and fuel dilution of 1.4%, it's always something. Sometimes I wonder about not doing UOA's but the not knowing kills me. I am going to sample before winter and see what happens.

Any comments or suggestions?

 

[lazaro]

Originally Posted By: hd2002
This run is 50% short trips and 10-15 minute warm up during winter months. Air filter was replaced with EAA at 26,220 miles.
Oil filter is a EAO32. UOA was done by OAI. I use a 50/50 of FP Plus and Bio-Plus injector cleaner at every fill up.




Miles on oil: 2380/1503
Time on oil: 1 year
Oil: Amsoil Castrol/ASL 5W30/ASL 5W30
Make up oil: 16 oz.
Miles on oil: 2380/1503/6256

Iron 18/9/33
Chromium 2/2/1
Lead 12/6/10
Copper 65/32/60
Tin 2/0/1
Aluminum 5/4/4
Nickel 0/0/1
Silver 0/0/0
Silicon 9/57/25
Boron 3/239/180
Sodium 70/27/6
Magnesium 14/19/0
Calcium 1946/3177/2893
Barium 0/0/0
Phosphorus 596/917/630
Zinc 596/957/746
Molybdenum 43/60/55
Titanium 0/0/0
Vanadium 0/0/0
Potassium 212/0/1
Fuel 1.4%
Visc100 9.88/9.72/9.8
Water 0/0/ Coolant Yes/No/No
Nitr NA/5.0/16
Oxid NA/1.0/11
TBN 9.88/6.63/9.8

I am struggling to keep silicon down, I cleaned air filter at last OCI. I have flushed since coolant leak and found wire loom pinched in air box. I did nothing with air filter this OCI. High copper, iron a little high and fuel dilution of 1.4%, it's always something. Sometimes I wonder about not doing UOA's but the not knowing kills me. I am going to sample before winter and see what happens.

Any comments or suggestions?

Interresting results I will post mine here too to make a comparison.
My unit is very similar 2007 Avalanche 5.3 with about 28,000 now and only 2 oil changes,First drain at 40 miles, used Amsoil ASL also and used, OAI for results>>>>>>>>>>>>>>>>>>>>>>>Data flagged for observation only; Copper is at a MINOR LEVEL; Bushing/thrust metal and/or most of the copper may be coming from lube cooler (as applicable); Please provide unit model number so we may compare data to the proper standards for this unit; Filter change acknowledged;
Aluminum 12==2
Chromium 4==0
Iron 132==18
Copper 332==78
Lead 141==19
Tin 10==1
Moly 79==57
Potassium 7==0
Silicon 70==12
Sodium 45==11
Calcium 3078==3389
Magnesium 18==13
Phosphorus 614==670
boron 30==210
Zinc 782==823
cST Viscosity @100 14.5==10.7
TBN 2.76==7.71
OXIDATION 57==40
NITRATION 45==21

 

[hd2002]

How many miles on this UOA?

 

[panthermike]

Originally Posted By: hd2002
How many miles on this UOA?


If you're referring to Lazaro's, 2000 miles.

 

[George7941]

I too am getting high Si numbers in my 4.3 GM engine and I don't believe it is from dirt ingestion.

Here is one of my UOAs http://www.bobistheoilguy.com/forums/ubb...rue#Post1178724

 

[steve20]

that's why I'll never do a UOA on the wife's Tahoe. I do not want to know........

Steve

 

[zulu]

Originally Posted By: steve20
that's why I'll never do a UOA on the wife's Tahoe. I do not want to know........

Steve


Ignorance is bliss. I agree with you. Skip the UOA and then 200K later, you can wonder why you ever cared anyways!

 

[Pablo]

Originally Posted By: hd2002
This run is 50% short trips and 10-15 minute warm up during winter months. Air filter was replaced with EAA at 26,220 miles.
Oil filter is a EAO32. UOA was done by OAI. I use a 50/50 of FP Plus and Bio-Plus injector cleaner at every fill up.




Miles on oil: 2380/1503
Time on oil: 1 year
Oil: Amsoil Castrol/ASL 5W30/ASL 5W30
Make up oil: 16 oz.
Miles on oil: 2380/1503/6256

Iron 18/9/33
Chromium 2/2/1
Lead 12/6/10
Copper 65/32/60
Tin 2/0/1
Aluminum 5/4/4
Nickel 0/0/1
Silver 0/0/0
Silicon 9/57/25
Boron 3/239/180
Sodium 70/27/6
Magnesium 14/19/0
Calcium 1946/3177/2893
Barium 0/0/0
Phosphorus 596/917/630
Zinc 596/957/746
Molybdenum 43/60/55
Titanium 0/0/0
Vanadium 0/0/0
Potassium 212/0/1
Fuel 1.4%
Visc100 9.88/9.72/9.8
Water 0/0/ Coolant Yes/No/No
Nitr NA/5.0/16
Oxid NA/1.0/11
TBN 9.88/6.63/9.8

I am struggling to keep silicon down, I cleaned air filter at last OCI. I have flushed since coolant leak and found wire loom pinched in air box. I did nothing with air filter this OCI. High copper, iron a little high and fuel dilution of 1.4%, it's always something. Sometimes I wonder about not doing UOA's but the not knowing kills me. I am going to sample before winter and see what happens.

Any comments or suggestions?


Wow - GREAT TBN retention! 1 year, 6.2K on this engine and 9.8.

The engine and conditions are oil beaters.