Oil Analyzers, Inc. '08 Toyota Prius Miles on unit- 52k Miles on Oil-15k Oil-Mobil 1 EP 5w-30 Filter- Purolator Pure One -Yellow Can Make-up oil- .5 Quarts. Severity of Report- 1-(Normal) Iron-20 Aluminum-3 Copper-3 Silicon-21 Sodium-6 Molybdenum-90 Potassium-1 Boron-34 Magnesium-12 Calcium-2233 Phosphorous-599 Zinc-674 Fuel-<1% Soot<.1% [email protected] Water-.1% Oxidation-20 Nitration-30 TBN-2.88
Good to see your getting a long service interval on a good synthetic. I compared it to my numbers and the only significant difference was that the AMSOIL 0W-30 had a higher TBN number(4.57).
Here's my Amsoil SS0 report- Blackstone Labs. Miles on unit:17k Miles on oil:15k Make-up oil: .5 quarts. Amsoil SS0, Eao filter. You've run this oil for about 88% of this young engine's life, and that's the reason that we are still finding high iron, copper, and silicon. We normally expect wear-in to be past by the time you get to about 10,000 miles, but when you run long oil changes from the start, the process takes longer. You'll get there eventually, though you could speed the process along by changing the oil at 7,500 miles next time. Note fuel at 3.0%. This is more than we like to see but hopefully it's from rings seating. The TBN read 4.1 showing some active additive left. Check back. ALUMINUM 5 CHROMIUM 0 IRON 18 COPPER 9 LEAD 1 TIN 11 MOLYBDENUM 1 MANGANESE 1 NICKEL 1 SILVER 0 TITANIUM 0 POTASSIUM 3 BORON 5 SILICON 58 SODIUM 6 CALCIUM 3206 MAGNESIUM 11 PHOSPHORUS 594 ZINC 711 BARIUM 1 cSt Viscosity @ 100°C 8.85 SUS Viscosity @ 210°F 55.3 TBN-4.1 Flashpoint in °F 315 Fuel % 3.0 Antifreeze % 0 Insolubles 0.3
