I switched from OAI to Blackstone for this latest test since I like their format of not charging me until the analysis is performed. I will be using Blackstone from here on out. You can search my previous posts to see this same oil analyzed at 5K miles by OAI.
Current Analysis
1999 Honda Accord 4cyl 2.3L EX Auto
Oil: Castrol GTX 10W30
Filter: Purolator PureOne PL14459
Blackstone was the lab used.
This sample had about 3 months of time on the oil, 8,749 miles. No makeup oil added. Vehicle had 115,123 miles on the clock.
COMMENTS:
Glad to hear you didn't change the oil filter. We use the insolubles test to gauge oil filtration and oxidation, and your insolubles are low enough that we think oil filter can stay in place. Metals look pretty good, though lead is a bit higher than expected. Chances are this is a temporary particle streak through the bearings, and if so it should drop to average next time. We don't think you've run your oil too long, and if you wanted to go longer next time, you could try 10K. The TBN is still good at 2.4. Sodium and 7ppm of the silicon are additives in this oil.
ELEMENTS IN PARTS PER MILLION
Aluminum: 3
Chromium: 1
Iron: 7
Copper: 2
Lead: 14
Tin: 0
Molybdenum: 4
Nickel: 0
Manganese: 0
Silver: 0
Titanium: 0
Potassium: 1
Boron: 1
Silicon: 16
Sodium: 150
Calcium: 2160
Magnesium: 7
Phosphorus: 605
Zinc: 736
Barium: 0
PROPERTIES:
SUS Viscosity @210*F: 61.5
cSt Viscosity @ 100*C: 10.63
Fuel %: Antifreeze %: 0.0
Water %: 0.0
Insolubles %: 0.3
TBN: 2.4
I gotta say I'm impressed by this oil, especially considering it's regular o'l DINO...NOT SYNTHETIC! 10K miles on DINO, I didn't think it possible.
Current Analysis
1999 Honda Accord 4cyl 2.3L EX Auto
Oil: Castrol GTX 10W30
Filter: Purolator PureOne PL14459
Blackstone was the lab used.
This sample had about 3 months of time on the oil, 8,749 miles. No makeup oil added. Vehicle had 115,123 miles on the clock.
COMMENTS:
Glad to hear you didn't change the oil filter. We use the insolubles test to gauge oil filtration and oxidation, and your insolubles are low enough that we think oil filter can stay in place. Metals look pretty good, though lead is a bit higher than expected. Chances are this is a temporary particle streak through the bearings, and if so it should drop to average next time. We don't think you've run your oil too long, and if you wanted to go longer next time, you could try 10K. The TBN is still good at 2.4. Sodium and 7ppm of the silicon are additives in this oil.
ELEMENTS IN PARTS PER MILLION
Aluminum: 3
Chromium: 1
Iron: 7
Copper: 2
Lead: 14
Tin: 0
Molybdenum: 4
Nickel: 0
Manganese: 0
Silver: 0
Titanium: 0
Potassium: 1
Boron: 1
Silicon: 16
Sodium: 150
Calcium: 2160
Magnesium: 7
Phosphorus: 605
Zinc: 736
Barium: 0
PROPERTIES:
SUS Viscosity @210*F: 61.5
cSt Viscosity @ 100*C: 10.63
Fuel %: Antifreeze %: 0.0
Water %: 0.0
Insolubles %: 0.3
TBN: 2.4
I gotta say I'm impressed by this oil, especially considering it's regular o'l DINO...NOT SYNTHETIC! 10K miles on DINO, I didn't think it possible.