Here's the virgin sample of Eneos 5W/20. The main additives present are molybdenum, calcium, phosporus, and zinc. There's also some boron and other elements tossed in for good measure. Molybdenum, phosphorus, and zice are anti-wear additives, and boron and calcium are detergent/dispersant additives. The viscosity read right where it should for a 5W/20 oil, and the insolubles present are likely some additive that has fallen out of suspension (not all that uncommon). The TBN of this oil starts out at 6.7. Looks like a good oil to use!
Aluminum...............0
Chromium...............0
Iron...................0
Copper.................0
Lead...................0
Tin....................0
Molybdenum.............134
Nickel.................0
Manganese..............0
Silver.................0
Titanium...............0
Potassium..............0
Boron..................87
Silicon................2
Sodium.................1
Calcium................1689
Magnesium..............4
Phosphorus.............582
Zinc...................747
Barium.................0
SUS Viscosity @210 F...53.6....47-57
cSt Viscosity @100 C...8.36....6.4-9.7
Flashpoint in F........435.....>400
Fuel %................. Antifreeze %...........0.0.....0.0
Water %................0.0..... Insolubles %...........TR...... TBN....................6.7.....>1.0
TAN....................
ISO Code...............