My Car: 1996 Acura Integra SE, 1997 B18C JDM ITR motor (totally stock inside) with about 90,000 miles on the engine at the time of the sample.
The Oil: Castrol 0w30 was changed after ~7136 miles/~7 months in the engine, with about 2.5 quarts of make-up oil added during that time, and was used with an Amsoil EaO oil filter.
Relevant Mods: No-name short ram intake with an Amsoil EaA dry air filter and a magnetic engine oil drain plug
So here are the numbers. Numbers in parentheses are from the X-Cess:
Aluminum--------4 (4)
Chromium-------1 (2)
Iron--------------10 (14)
Copper-----------2 (2)
Lead--------------1 (1)
Tin----------------0 (0)
Molybdenum-----3 (5)
Nickel------------0 (0)
Manganese------0 (1)
Silver------------0 (0)
Titanium--------0 (2)
Potassium-------1 (2)
Boron------------3 (6)
Silicon-----------13 (16)
Sodium----------7 (9)
Calcium---------1678 (1410)
Magnesium-----595 (1109)
Phosphorous----883 (838)
Zinc-------------1103 (1129)
Barium----------0 (0)
SUS Visc. @ 210F----64.6 (71.1)
CSt Visc. @ 100C----11.5 (13.23)
Flashpoint in F-------395 (415)
Fuel (%)-------------- Water (%)------------0 (0)
Antifreeze (%)-------0 (0)
Insolubles------------0.4 (0.3)
Some misc. notes (in case they matter):
- oil was put in February 9, 2008, and sampled August 25, 2008
- the car runs for at least 10-15 seconds on cold starts before driving (no more than a minute)
- always babied until the engine is up to temp (no more than 2500-3000rpm), then everyday driving is pretty much always under 3500-4000 rpm
- majority of driving is easy-going
- spirited driving is very spirited
- car sees 8000-8600rpm from time to time (during spirited driving, or just having fun here and there), but not too often. 8600rpm is the engine's stock redline.
Overall I'm very satisfied with how the oil performed. While taking the sample, I did it with the engine at operating temp minus like 20 minutes so it was pretty hard to put the drain plug back on with the HOT HOT oil pouring out slowly as well as the magnet sticking to the drain plug threaded section...so I ended up having to top off with about 2.8 quarts of fresh GC (not such a bad thing though!).
How much longer do you think I could run my current oil? What's in there is about 2.8 quarts of fresh oil and the rest (~1.4 quarts) is the old stuff (plus top-offs over time, of course). I was thinking maybe another 5000 miles?
--Brian
Previous UOAs:
Motul X-Cess 5w40
Amsoil TSO
The Oil: Castrol 0w30 was changed after ~7136 miles/~7 months in the engine, with about 2.5 quarts of make-up oil added during that time, and was used with an Amsoil EaO oil filter.
Relevant Mods: No-name short ram intake with an Amsoil EaA dry air filter and a magnetic engine oil drain plug
So here are the numbers. Numbers in parentheses are from the X-Cess:
Aluminum--------4 (4)
Chromium-------1 (2)
Iron--------------10 (14)
Copper-----------2 (2)
Lead--------------1 (1)
Tin----------------0 (0)
Molybdenum-----3 (5)
Nickel------------0 (0)
Manganese------0 (1)
Silver------------0 (0)
Titanium--------0 (2)
Potassium-------1 (2)
Boron------------3 (6)
Silicon-----------13 (16)
Sodium----------7 (9)
Calcium---------1678 (1410)
Magnesium-----595 (1109)
Phosphorous----883 (838)
Zinc-------------1103 (1129)
Barium----------0 (0)
SUS Visc. @ 210F----64.6 (71.1)
CSt Visc. @ 100C----11.5 (13.23)
Flashpoint in F-------395 (415)
Fuel (%)-------------- Water (%)------------0 (0)
Antifreeze (%)-------0 (0)
Insolubles------------0.4 (0.3)
Some misc. notes (in case they matter):
- oil was put in February 9, 2008, and sampled August 25, 2008
- the car runs for at least 10-15 seconds on cold starts before driving (no more than a minute)
- always babied until the engine is up to temp (no more than 2500-3000rpm), then everyday driving is pretty much always under 3500-4000 rpm
- majority of driving is easy-going
- spirited driving is very spirited
- car sees 8000-8600rpm from time to time (during spirited driving, or just having fun here and there), but not too often. 8600rpm is the engine's stock redline.
Overall I'm very satisfied with how the oil performed. While taking the sample, I did it with the engine at operating temp minus like 20 minutes so it was pretty hard to put the drain plug back on with the HOT HOT oil pouring out slowly as well as the magnet sticking to the drain plug threaded section...so I ended up having to top off with about 2.8 quarts of fresh GC (not such a bad thing though!).
How much longer do you think I could run my current oil? What's in there is about 2.8 quarts of fresh oil and the rest (~1.4 quarts) is the old stuff (plus top-offs over time, of course). I was thinking maybe another 5000 miles?
--Brian
Previous UOAs:
Motul X-Cess 5w40
Amsoil TSO