Amsoil ASL 5W30,6256 miles,2005 Silverado 5.3

Messages
152
Location
Illinois
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/<1/1.4% Visc100 9.88/9.72/9.8 Water 0/0/<1% 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?
 
Messages
747
Location
miami fl
 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/<1/1.4% Visc100 9.88/9.72/9.8 Water 0/0/<1% 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
 
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Messages
528
Location
Kansas
 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!
 
Messages
47,538
Location
Duvall WA - Pacific NW USA
 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/<1/1.4% Visc100 9.88/9.72/9.8 Water 0/0/<1% 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.
 
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