Subaru 2.5L (EJ25) Dual AVCS, 4-cyl Turbo, race motor, track use, 7,500 RPM, 430 WHP, BW EFR turbo.
OIL TYPE & GRADE: Royal Purple XPR 5W/30
HR on Oil: 3 Hours
Total HR on engine: 6 hours
I am using 32 ounces of TORCO per 5 gallons of premium 93 octane, the maximum amount of Torco octane booster additive, in my
fuel.
The other thing I did, which may be inappropriate, is I drained the oil cold and collected my sample after a quart or so ran out. Could that cause volatiles (fuel) to be missed?
I have no hint of impending doom. No excessive blowby for a race engine.
Engine is conservatively tuned so A/F ratios are fairly fat.
Oil pressure is good. 60-80 PSI. Nine quart capacity. I use K&N HP 3001 filters. Race engine bearing clearances of 1.5 on mains. ACL racing bearings.
Any thoughts on the high lead number? Should I continue to use the oil (for more hours)?
ALUMINUM 6
CHROMIUM 3
IRON 24
COPPER 4
LEAD 125
TIN 1
MOLYBDENUM 104
NICKEL 0
SILVER 42
TITANIUM 0
POTASSIUM 2
BORON 41
SILICON 10
SODIUM 7
CALCIUM 2496
MAGNESIUM 11
PHOSPHORUS 980
ZINC 1527
BARIUM 0
SUS Viscosity @ 210°F 56.2
cSt Viscosity @ 100°C 9.13
Flashpoint in °F 360
Fuel % TR
Antifreeze % 0
Water % 0
Insolubles % .1
OIL TYPE & GRADE: Royal Purple XPR 5W/30
HR on Oil: 3 Hours
Total HR on engine: 6 hours
I am using 32 ounces of TORCO per 5 gallons of premium 93 octane, the maximum amount of Torco octane booster additive, in my
fuel.
The other thing I did, which may be inappropriate, is I drained the oil cold and collected my sample after a quart or so ran out. Could that cause volatiles (fuel) to be missed?
I have no hint of impending doom. No excessive blowby for a race engine.
Engine is conservatively tuned so A/F ratios are fairly fat.
Oil pressure is good. 60-80 PSI. Nine quart capacity. I use K&N HP 3001 filters. Race engine bearing clearances of 1.5 on mains. ACL racing bearings.
Any thoughts on the high lead number? Should I continue to use the oil (for more hours)?
ALUMINUM 6
CHROMIUM 3
IRON 24
COPPER 4
LEAD 125
TIN 1
MOLYBDENUM 104
NICKEL 0
SILVER 42
TITANIUM 0
POTASSIUM 2
BORON 41
SILICON 10
SODIUM 7
CALCIUM 2496
MAGNESIUM 11
PHOSPHORUS 980
ZINC 1527
BARIUM 0
SUS Viscosity @ 210°F 56.2
cSt Viscosity @ 100°C 9.13
Flashpoint in °F 360
Fuel % TR
Antifreeze % 0
Water % 0
Insolubles % .1