This is an oil analysis report from my daily driver. The driving style was about 50/50 city/highway – most city trips are about 10 miles in length and are at higher speeds (>40 mph), so the gas engine is running.
This car has only seen synthetic oil from day 1; all oil changes except 1 or 2 have been with 0W-20. For the first 90k miles, I followed the OEM specified 10K intervals but noticed that the oil started to get extremely dark as the engine aged. Since then, I have scaled back to 5K intervals.
Total time on this oil was about 3 months. This was Eneos 0W-20 from WorldPac with a Genuine Toyota oil filter. There was no oil consumption.
***
Miles on Oil: 5,018
Total Miles on Unit: 153,364
Sample Date: 6/27/17
Make Up Oil Added: 0 qts
Aluminum: 3
Chromium: 0
Iron: 4
Copper: 0
Lead: 0
Tin: 0
Molybdenum: 162
Nickel: 0
Manganese: 0
Silver: 0
Titanium: 0
Potassium: 1
Boron: 51
Silicon: 7
Sodium: 3
Calcium: 1915
Magnesium: 102
Phosphorus: 679
Zinc: 802
Barium: 0
SUS Viscosity @ 210F: 50.2
cSt Viscosity @ 100C: 7.33
Flashpoint in F: 400
Fuel %: Antifreeze %: 0
Water %: 0
Insolubles %: 0.2
TBN: 4.1
This car has only seen synthetic oil from day 1; all oil changes except 1 or 2 have been with 0W-20. For the first 90k miles, I followed the OEM specified 10K intervals but noticed that the oil started to get extremely dark as the engine aged. Since then, I have scaled back to 5K intervals.
Total time on this oil was about 3 months. This was Eneos 0W-20 from WorldPac with a Genuine Toyota oil filter. There was no oil consumption.
***
Miles on Oil: 5,018
Total Miles on Unit: 153,364
Sample Date: 6/27/17
Make Up Oil Added: 0 qts
Aluminum: 3
Chromium: 0
Iron: 4
Copper: 0
Lead: 0
Tin: 0
Molybdenum: 162
Nickel: 0
Manganese: 0
Silver: 0
Titanium: 0
Potassium: 1
Boron: 51
Silicon: 7
Sodium: 3
Calcium: 1915
Magnesium: 102
Phosphorus: 679
Zinc: 802
Barium: 0
SUS Viscosity @ 210F: 50.2
cSt Viscosity @ 100C: 7.33
Flashpoint in F: 400
Fuel %: Antifreeze %: 0
Water %: 0
Insolubles %: 0.2
TBN: 4.1