Engine Oil
Vehicle: 1996 Corvette Lt-4 5.7l V-8 6-speed
Oil analyzed: M1 5W-30 / Delvac Super 1300 15W-40
Lab: Blackstone
Drain Interval: 2950 / 6410 miles
Total Vehicle Miles: 48,860 at finish
Make-Up Oil: 0 qt
Oil Filter: Fleetguard LF3554 (synthetic media)
OEM air filter
Sample dates: 8/23/04 / 7/17/04
Conmments: See below
Vehicle driven. 90% + highway. From Freeway to extended twisty road driving. Very little city.
Oil temps generally run 200F to 230F with rare excursions to 240F range, Never over 250F
Note, newest to oldest left to right.
ALUMINUM 7/7
CHROMIUM 1/3
IRON 11/31
COPPER 2/5
LEAD 13/48
TIN 5/11
MOLYBDENUM 38/58
NICKEL 1/2
MANGANESE 0/1
SILVER 0/0
TITANIUM 0/0
POTASSIUM 1/3
BORON 42/120
SILICON 13/29
SODIUM 6/14
CALCIUM 2701/2610
MAGNESIUM 422/7
PHOSPHORUS 1124/687
ZINC 1191/881
BARIUM 0/1
SUS Visc. @210'F 74.5/62.5
Flash 380/435
Fuel Antifreeze 0.0%/0.0%
Water 0.0%/0.0%
Insolubles 0.3%/0.4%
TBN 8.0/3.7
I got the car last November with 39,500 miles on it in excellent cosmetic and running condition. Supposidly dealer maintained. I have no reason to doubt that, for better or worse
The above runs were part of an ARx clean rinse cycle. Clean cycle was done on the M1 5W-30. The last 4,000 miles of the M1 was with ARx, I overdid it because of some trips and other issues.
The rinse cycle was on the S1300 15W-40. ARx details will be posted in the additives forum.
No noticable oil was consumed on either batch of oil. It didn't budge off full on the dipstick.
I think the TBN on the S1300 15W-40 is impressive for a dino oil.
I discovered a slight gap in the intake ducting about the time I put the ARx in. Probably accounts for the 29 Si in the first part.
Lead and Tin are high, Lead a lot worse in the first part. I used 6th gear less in the 2nd part in case it was a lugging issue.
Lead got better, Tin only better proportional to miles driven.
Car now has M1 10W-30 and 5 oz of LC. Next analysis in 6,000 miles.
Vehicle: 1996 Corvette Lt-4 5.7l V-8 6-speed
Oil analyzed: M1 5W-30 / Delvac Super 1300 15W-40
Lab: Blackstone
Drain Interval: 2950 / 6410 miles
Total Vehicle Miles: 48,860 at finish
Make-Up Oil: 0 qt
Oil Filter: Fleetguard LF3554 (synthetic media)
OEM air filter
Sample dates: 8/23/04 / 7/17/04
Conmments: See below
Vehicle driven. 90% + highway. From Freeway to extended twisty road driving. Very little city.
Oil temps generally run 200F to 230F with rare excursions to 240F range, Never over 250F
Note, newest to oldest left to right.
ALUMINUM 7/7
CHROMIUM 1/3
IRON 11/31
COPPER 2/5
LEAD 13/48
TIN 5/11
MOLYBDENUM 38/58
NICKEL 1/2
MANGANESE 0/1
SILVER 0/0
TITANIUM 0/0
POTASSIUM 1/3
BORON 42/120
SILICON 13/29
SODIUM 6/14
CALCIUM 2701/2610
MAGNESIUM 422/7
PHOSPHORUS 1124/687
ZINC 1191/881
BARIUM 0/1
SUS Visc. @210'F 74.5/62.5
Flash 380/435
Fuel Antifreeze 0.0%/0.0%
Water 0.0%/0.0%
Insolubles 0.3%/0.4%
TBN 8.0/3.7
I got the car last November with 39,500 miles on it in excellent cosmetic and running condition. Supposidly dealer maintained. I have no reason to doubt that, for better or worse
The above runs were part of an ARx clean rinse cycle. Clean cycle was done on the M1 5W-30. The last 4,000 miles of the M1 was with ARx, I overdid it because of some trips and other issues.
The rinse cycle was on the S1300 15W-40. ARx details will be posted in the additives forum.
No noticable oil was consumed on either batch of oil. It didn't budge off full on the dipstick.
I think the TBN on the S1300 15W-40 is impressive for a dino oil.
I discovered a slight gap in the intake ducting about the time I put the ARx in. Probably accounts for the 29 Si in the first part.
Lead and Tin are high, Lead a lot worse in the first part. I used 6th gear less in the 2nd part in case it was a lugging issue.
Lead got better, Tin only better proportional to miles driven.
Car now has M1 10W-30 and 5 oz of LC. Next analysis in 6,000 miles.