UOA by Oil Analyzers Inc.
Driving conditions: Oil in use May – September; 7 mile daily commute each way; spirited driving with a few WOT’s here and there on days where I have a 30 minute drive. A trip to RI in May and to SC in July. Most of my consumption is on trips after driving on the Interstate.
Although TBN and oxidation were flagged, I’m pleased that the lead dropped to 0.
My last uoa is here . I recorded 1 quart of make-up oil, although I believe that I forgot to log a ½ quart addition somewhere. 24 oz added 2,247 miles into OCI and 6 oz. added 3,877 miles. I think I will keep my OCI’s at 6k, instead of pushing to 7-8k, regardless of what I use.
Comments: Base number is below acceptable minimum; Infared results indicate OXIDATION is SIGNIFICANTLY HIGH; Lube mixing possible due to change in additive levels; Lubricant and oil filter change acknowledged.
Equipment make: Subaru
Equipment model: 2.5L Turbo
Oil use interval: 6,034 miles
Oil type & Grade: Mobil1 0W-40
Make-up oil added: 1 qts. (really about 1.5)
Miles on unit: 99,642
Air filter: Amsoil Ea panel filter
Oil filter: OEM Honeywell
Overall severity of report = 3 abnormal
M1, SSO; SSO;
Iron 7 11 11 (what high iron?)
Chromium 0 0 0
Nickel 0 0 0
Aluminum 0 3 3
Copper 15 5 6
Lead 0 10 4
Tin 0 1 0
Cadmium 0 1 0
Silver 0 0 0
Silicon 8 10 11 (first time in single digits!)
Sodium 22 28 90
Potassium 3 2 2
Titanium 0 0 0
Molybdenum 123 2 1
Antimony 2 0 0
Manganese 0 4 0
Lithium 0 3 0
Boron 112 7 7
Magnesium 30 17 17
Calcium 2805 3497 3423
Barium 0 0 0
Phosphorus 880 654 677
Zinc 1061 717 755
Lube chg Y
Filter chg Y
Fuel Soot Water Vis @ 100C: 13.2 10.1 9.6
TBN 1.99 4.35 4.01
Oxidation 37 43 38
Nitration 27 32 27
Any comments?
-Dennis
Driving conditions: Oil in use May – September; 7 mile daily commute each way; spirited driving with a few WOT’s here and there on days where I have a 30 minute drive. A trip to RI in May and to SC in July. Most of my consumption is on trips after driving on the Interstate.
Although TBN and oxidation were flagged, I’m pleased that the lead dropped to 0.
My last uoa is here . I recorded 1 quart of make-up oil, although I believe that I forgot to log a ½ quart addition somewhere. 24 oz added 2,247 miles into OCI and 6 oz. added 3,877 miles. I think I will keep my OCI’s at 6k, instead of pushing to 7-8k, regardless of what I use.
Comments: Base number is below acceptable minimum; Infared results indicate OXIDATION is SIGNIFICANTLY HIGH; Lube mixing possible due to change in additive levels; Lubricant and oil filter change acknowledged.
Equipment make: Subaru
Equipment model: 2.5L Turbo
Oil use interval: 6,034 miles
Oil type & Grade: Mobil1 0W-40
Make-up oil added: 1 qts. (really about 1.5)
Miles on unit: 99,642
Air filter: Amsoil Ea panel filter
Oil filter: OEM Honeywell
Overall severity of report = 3 abnormal
M1, SSO; SSO;
Iron 7 11 11 (what high iron?)
Chromium 0 0 0
Nickel 0 0 0
Aluminum 0 3 3
Copper 15 5 6
Lead 0 10 4
Tin 0 1 0
Cadmium 0 1 0
Silver 0 0 0
Silicon 8 10 11 (first time in single digits!)
Sodium 22 28 90
Potassium 3 2 2
Titanium 0 0 0
Molybdenum 123 2 1
Antimony 2 0 0
Manganese 0 4 0
Lithium 0 3 0
Boron 112 7 7
Magnesium 30 17 17
Calcium 2805 3497 3423
Barium 0 0 0
Phosphorus 880 654 677
Zinc 1061 717 755
Lube chg Y
Filter chg Y
Fuel Soot Water Vis @ 100C: 13.2 10.1 9.6
TBN 1.99 4.35 4.01
Oxidation 37 43 38
Nitration 27 32 27
Any comments?
-Dennis