Over all I'm pleased with the results. Ran the oil almost 2 years. Might have to track down the silicon issue via the air filter intake system as BlackStone suggests. Only VOA I've seen of Amsoil 20W50 MCV didn't have that amount. They also suggested that copper was a little high relative to the universal averages for this type engine and might be the result of dirt ingress from the induction system.
Code:
EQUIP. MAKE/MODEL: BMW Motorcycle 740cc OIL TYPE & GRADE: Amsoil 20W/50
FUEL TYPE: Gasoline (Unleaded) OIL USE INTERVAL: 4,238 Miles
ADDITIONAL INFO: 1986
Amsoil 20W50 Castrol 20W50
MI/HR on Oil 4,238 1,450
UNIT /
MI/HR on Unit 17,365 AVERAGES 13,075 UNIVERSAL
Sample Date 07/14/11 11/30/09 AVERAGES
ELEMENTS IN PARTS PER MILLION Make Up Oil Added 0 qts
ALUMINUM 3 2 1 2
CHROMIUM 1 1 0 1
IRON 6 5 3 10
COPPER 8 6 3 3
LEAD 2 2 1 2
TIN 4 2 0 0
MOLYBDENUM 50 46 41 39
NICKEL 1 1 0 1
MANGANESE 0 0 0 0
SILVER 0 0 0 0
TITANIUM 0 0 0 0
POTASSIUM 1 1 0 0
BORON 23 111 198 108
SILICON 12 8 3 5
SODIUM 2 2 1 3
CALCIUM 3144 2533 1921 2040
MAGNESIUM 28 47 65 157
PHOSPHORUS 1166 916 665 918
ZINC 1412 1101 789 1119
BARIUM 0 0 0 0
Values
Should Be*
SUS Viscosity @ 210°F 85.6 82-95 68.7
PROPERTIES cSt Viscosity @ 100°C 16.90 16.0-19.4 12.62
Flashpoint in °F 375 >385 395
Fuel % 0.5
Antifreeze % 0.0 0 0.0
Water % 0.0
Insolubles % 0.3
TBN 8.6 7.2
TAN
ISO Code
Code:
EQUIP. MAKE/MODEL: BMW Motorcycle 740cc OIL TYPE & GRADE: Amsoil 20W/50
FUEL TYPE: Gasoline (Unleaded) OIL USE INTERVAL: 4,238 Miles
ADDITIONAL INFO: 1986
Amsoil 20W50 Castrol 20W50
MI/HR on Oil 4,238 1,450
UNIT /
MI/HR on Unit 17,365 AVERAGES 13,075 UNIVERSAL
Sample Date 07/14/11 11/30/09 AVERAGES
ELEMENTS IN PARTS PER MILLION Make Up Oil Added 0 qts
ALUMINUM 3 2 1 2
CHROMIUM 1 1 0 1
IRON 6 5 3 10
COPPER 8 6 3 3
LEAD 2 2 1 2
TIN 4 2 0 0
MOLYBDENUM 50 46 41 39
NICKEL 1 1 0 1
MANGANESE 0 0 0 0
SILVER 0 0 0 0
TITANIUM 0 0 0 0
POTASSIUM 1 1 0 0
BORON 23 111 198 108
SILICON 12 8 3 5
SODIUM 2 2 1 3
CALCIUM 3144 2533 1921 2040
MAGNESIUM 28 47 65 157
PHOSPHORUS 1166 916 665 918
ZINC 1412 1101 789 1119
BARIUM 0 0 0 0
Values
Should Be*
SUS Viscosity @ 210°F 85.6 82-95 68.7
PROPERTIES cSt Viscosity @ 100°C 16.90 16.0-19.4 12.62
Flashpoint in °F 375 >385 395
Fuel % 0.5
Antifreeze % 0.0 0 0.0
Water % 0.0
Insolubles % 0.3
TBN 8.6 7.2
TAN
ISO Code