The reason I do used oil analysis and extended oil changes is: 1) I find it interesting; 2) so we all might learn something. I could have figured out what oil and oci works after a couple of UOA reports and gone about my merry way. But whats the fun in that, right?
My 2007 Toyota FJ Cruiser w/4.0L (I run regular unleaded) gas engine has been a wonderful vehicle. I bought it used March 2009 with 22k on it. The first 9 mths and 15k miles of ownership I did what I had always done to my vehicles, changed the oil and filter every 3k miles w/dinasor oil. In Dec 2009 I switched to Amsoil SSO 5w30 synthetic oil. The original plan(based on Amsoil marketing) was to change this oil every 25k miles with 2 filter changes and the makeup oil in between. But 1 yr(Dec 2010) and 17k miles on the oil later, I sent the first sample to Oil Analyzers Inc(OAI-Polaris Labs). The results told me that 25k miles was too much and I needed better oil filtering. So I installed the Pareto Point TopDog V engine oil bypass filtration system in Jan. 2011 w/55k miles on the clock. This adds almost 1 qt to the sump capacity too. It's still in place to this day. I usually change the Amsoil EaBP90 bypass filter every 3rd oil change.
Over the yrs I've tried 6 or 7 different flavors of engine oil. The most expensive being Amsoil SSO 5w30. The least expensive being WalMart full synthetic 5w30. My oil and full flow filter change interval varies based upon what the UOA tells me.
This oil report is about Mobil Delvac 1 ESP 5w40. The ff filter was again a Fram XG8A. This is the 1st time I've run this oil in this engine. The air cleaner element was a Fram XGA9683. I've tried 4 different air filters on this vehicle. I can't find an induction leak?
OAI flagged the following:
SILICON level(Si) is at the MINOR level.
OXIDATION as at a SEVERE level. I'm not too concerned because the oil viscosity hasn't thickened(13.3). Virgin # is 33.
NITRATION is at a MINOR level. Virgin # is 7.
Boron is slightly low
What Say U ?????
Old results on the left, newer results as you go right
Code
Oil Amsoil Amsoil Amsoil Amsoil Amsoil Amsoil SynTec M1 M1 M1 M Del 1
Brand SSO SSO AMO AMO AMO ACD ST EP AP ESP
Weight 5w30 5w30 10w40 10w40 10w40 10w30 5w30 5w30 5w30 5w30 5w40
Iron 28.......14.......12...…...7.......21.......17........19........21........22........24....….18
Copper 1.....…...1........1...…...0........1........0.........1.........1.....…...1.........1.......0
Alum 5.........6........7.......1........3........2.........0.........3.........3.........3.......5
CONTAMINANT METALS-PPM
Silicon 56.......70.......43......32........33......37........38.........30........25........31......30
Sodium 168......45.......17......28........29......31........29.........21........23........26......27
Potassium 4.......2........2.......4........3........5...….....1...…...….3..........3...…....4........0
MULTI SOURCE METALS
Molybdenum 2.........0........0.......0........0........0........32.........65........77........72.......54
Boron 6.........4........3.......1........1........2.........1...….....20........26........24.......32
ADDITIVE METALS-PPM
Magnesium 14.......11.......16.......10.......13.......11.......12.........535.......684.......727......931
Calcium 3394.....3531.....4351.....3589.....3022.....3520.....2417.......1311......1086......1110......1044
Phosph 568.......497......809......929......895.....1037......643........662......684........642.......833
Zinc 691.......591.......989.....1130.....1084....1236......757........817......836........808......1079
V100C 10.9.....10.8.....12.7.....14.3.....15.2....12.7.....10.2.......10.3......10.2......10.8......13.3
IR Oxidation 58.......64.......61......25.......67......50........27.........23...…...17.........22.........42
IR Nitra 39.......41.......17.......9.......18......18........15.........15.......11...….....15........16
TBN 2.66.....2.18.....2.48.....2.35.....1.89.....2.22......1.43......2.64.....2.92......2.32......2.51
My 2007 Toyota FJ Cruiser w/4.0L (I run regular unleaded) gas engine has been a wonderful vehicle. I bought it used March 2009 with 22k on it. The first 9 mths and 15k miles of ownership I did what I had always done to my vehicles, changed the oil and filter every 3k miles w/dinasor oil. In Dec 2009 I switched to Amsoil SSO 5w30 synthetic oil. The original plan(based on Amsoil marketing) was to change this oil every 25k miles with 2 filter changes and the makeup oil in between. But 1 yr(Dec 2010) and 17k miles on the oil later, I sent the first sample to Oil Analyzers Inc(OAI-Polaris Labs). The results told me that 25k miles was too much and I needed better oil filtering. So I installed the Pareto Point TopDog V engine oil bypass filtration system in Jan. 2011 w/55k miles on the clock. This adds almost 1 qt to the sump capacity too. It's still in place to this day. I usually change the Amsoil EaBP90 bypass filter every 3rd oil change.
Over the yrs I've tried 6 or 7 different flavors of engine oil. The most expensive being Amsoil SSO 5w30. The least expensive being WalMart full synthetic 5w30. My oil and full flow filter change interval varies based upon what the UOA tells me.
This oil report is about Mobil Delvac 1 ESP 5w40. The ff filter was again a Fram XG8A. This is the 1st time I've run this oil in this engine. The air cleaner element was a Fram XGA9683. I've tried 4 different air filters on this vehicle. I can't find an induction leak?
OAI flagged the following:
SILICON level(Si) is at the MINOR level.
OXIDATION as at a SEVERE level. I'm not too concerned because the oil viscosity hasn't thickened(13.3). Virgin # is 33.
NITRATION is at a MINOR level. Virgin # is 7.
Boron is slightly low
What Say U ?????
Old results on the left, newer results as you go right
Code
Oil Amsoil Amsoil Amsoil Amsoil Amsoil Amsoil SynTec M1 M1 M1 M Del 1
Brand SSO SSO AMO AMO AMO ACD ST EP AP ESP
Weight 5w30 5w30 10w40 10w40 10w40 10w30 5w30 5w30 5w30 5w30 5w40
Iron 28.......14.......12...…...7.......21.......17........19........21........22........24....….18
Copper 1.....…...1........1...…...0........1........0.........1.........1.....…...1.........1.......0
Alum 5.........6........7.......1........3........2.........0.........3.........3.........3.......5
CONTAMINANT METALS-PPM
Silicon 56.......70.......43......32........33......37........38.........30........25........31......30
Sodium 168......45.......17......28........29......31........29.........21........23........26......27
Potassium 4.......2........2.......4........3........5...….....1...…...….3..........3...…....4........0
MULTI SOURCE METALS
Molybdenum 2.........0........0.......0........0........0........32.........65........77........72.......54
Boron 6.........4........3.......1........1........2.........1...….....20........26........24.......32
ADDITIVE METALS-PPM
Magnesium 14.......11.......16.......10.......13.......11.......12.........535.......684.......727......931
Calcium 3394.....3531.....4351.....3589.....3022.....3520.....2417.......1311......1086......1110......1044
Phosph 568.......497......809......929......895.....1037......643........662......684........642.......833
Zinc 691.......591.......989.....1130.....1084....1236......757........817......836........808......1079
V100C 10.9.....10.8.....12.7.....14.3.....15.2....12.7.....10.2.......10.3......10.2......10.8......13.3
IR Oxidation 58.......64.......61......25.......67......50........27.........23...…...17.........22.........42
IR Nitra 39.......41.......17.......9.......18......18........15.........15.......11...….....15........16
TBN 2.66.....2.18.....2.48.....2.35.....1.89.....2.22......1.43......2.64.....2.92......2.32......2.51
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