UOA Corvette LS7 Redline 5w-30 Track Usage

[randomhero439]

Hi BITOG members in for my annual UOA. Car is a 2008 Corvette Z06. Saw street miles and 6 track days and 5 autocross events. OLM read 42%. Oil was in the 250s for most of the events, but 2 of the days it got around 265F. I checked the oil pressures at 265F and they were right at the low limit for a hot LS7. Thus, for this oil change, I used the rest of my 5w-30 (2.3qt) and then moved to Redline 5w-40 and a K&N oil filter. Engine is pretty much stock, with the heads fixed. The run "#3" in the image is the first oil change after fixing the heads and replacing the exhaust valves. Has a Corsa axleback exhaust and K&N drop-in filter. I've read some stuff that the first run of Redline usually is a "cleanup" run and the wear metals usually show higher. Curious to see what the next run shows after it gets beat up some more at the track. I suspect Silicon is high because it's Redline and thats the anti-foam. Not sure how to do the code thing anymore, maybe a mod can help me out here.

#1 is Redline 5w-30 with AcDelco standard filter
#2 is M1EP 5w-30 and Mobil 1 filter https://bobistheoilguy.com/forums/threads/uoa-corvette-z06-ls7.319821/
#3 is M1 EP 5w-30 and Mobil 1 filter https://bobistheoilguy.com/forums/threads/uoa-08-corvette-z06-ls7-after-upgrading-heads.280888/

OIL Redline 5w-30 M1EP 5w30 M1EP 5w30
MILES IN USE 3.7k 3.3k 1.7k
MILES 59.7k 56.0k 49.5k
SAMPLE TAKEN 11/28/20 12/8/19 11/23/17
MAKE UP OIL 1.7QT 0 0

ALUMINUM 9 4 7
CHROMIUM 4 2 2
IRON 57 29 39
COPPER 2 1 2
LEAD 10 4 3
TIN 2 0 1
MOLYBDENUM 394 71 85
NICKEL 1 1 1
MANGANESE 1 0 1
SILVER 0 0 0
TITANIUM 9 6 11
POTASSIUM 0 1 1
BORON 118 68 88
SILICON 20 6 6
SODIUM 13 6 5
CALCIUM 2312 1011 941
MAGNESIUM 429 658 757
PHOSPHORUS 1031 619 705
ZINC 1150 713 789
BARIUM 0 0 0

INSOLUBLES 0.2 0.2 0.2
WATER 0 0 0
FLASHPOINT �F 425 385 415
SUS VIS 210�F 63.2 59.3 61.7
cSt @ 212�F 11.12 10.03 10.71

 

[aquariuscsm]

Weird how the el-cheapo Mobil 1 gave you the best uoa.

 

[clinebarger]

For track events....I would run a 15w40 or a 15w50.

 

[Scuder]

Silicon can also indicate "dirt."
It may be Redline's anti foam additive, or a cleanup as you mentioned.

 

[bfleeman]

I just sent in a virgin sample of Redline 5w30 and it had 24 silicon in the sample.

 

[randomhero439]

I just sent in a virgin sample of Redline 5w30 and it had 24 silicon in the sample.

Glad K&N filter isn’t letting too much dirt past!

 

[edyvw]

After Redline 5W40 try Motul 5W40 300V. There is excellent UOA on Motul 0W40 300V here in Corvette.
I would really like to see comparison.

 

[mahanddeem]

Weird how the el-cheapo Mobil 1 gave you the best uoa.

Mobil1 is el-cheapo? so supertech is el-freeno?

 

[Ram02]

Hi BITOG members in for my annual UOA. Car is a 2008 Corvette Z06. Saw street miles and 6 track days and 5 autocross events. OLM read 42%. Oil was in the 250s for most of the events, but 2 of the days it got around 265F. I checked the oil pressures at 265F and they were right at the low limit for a hot LS7. Thus, for this oil change, I used the rest of my 5w-30 (2.3qt) and then moved to Redline 5w-40 and a K&N oil filter. Engine is pretty much stock, with the heads fixed. The run "#3" in the image is the first oil change after fixing the heads and replacing the exhaust valves. Has a Corsa axleback exhaust and K&N drop-in filter. I've read some stuff that the first run of Redline usually is a "cleanup" run and the wear metals usually show higher. Curious to see what the next run shows after it gets beat up some more at the track. I suspect Silicon is high because it's Redline and thats the anti-foam. Not sure how to do the code thing anymore, maybe a mod can help me out here.

#1 is Redline 5w-30 with AcDelco standard filter
#2 is M1EP 5w-30 and Mobil 1 filter https://bobistheoilguy.com/forums/threads/uoa-corvette-z06-ls7.319821/
#3 is M1 EP 5w-30 and Mobil 1 filter https://bobistheoilguy.com/forums/threads/uoa-08-corvette-z06-ls7-after-upgrading-heads.280888/

OIL Redline 5w-30 M1EP 5w30 M1EP 5w30
MILES IN USE 3.7k 3.3k 1.7k
MILES 59.7k 56.0k 49.5k
SAMPLE TAKEN 11/28/20 12/8/19 11/23/17
MAKE UP OIL 1.7QT 0 0

ALUMINUM 9 4 7
CHROMIUM 4 2 2
IRON 57 29 39
COPPER 2 1 2
LEAD 10 4 3
TIN 2 0 1
MOLYBDENUM 394 71 85
NICKEL 1 1 1
MANGANESE 1 0 1
SILVER 0 0 0
TITANIUM 9 6 11
POTASSIUM 0 1 1
BORON 118 68 88
SILICON 20 6 6
SODIUM 13 6 5
CALCIUM 2312 1011 941
MAGNESIUM 429 658 757
PHOSPHORUS 1031 619 705
ZINC 1150 713 789
BARIUM 0 0 0

INSOLUBLES 0.2 0.2 0.2
WATER 0 0 0
FLASHPOINT �F 425 385 415
SUS VIS 210�F 63.2 59.3 61.7
cSt @ 212�F 11.12 10.03 10.71

Time to go back to Mobil 1 and tell Mobil 1 your sorry

 

[Cujet]

I think I'd choose an oil that maintains adequate oil pressure without excess temperature. Sometimes the use of a more viscous oil results in higher oil temperatures.

 

[Aholland2804]

With those results I wouldn't see the need in buying redline, A guy would slip right back over to wally world and snag on some more mobil 1

 

[Brons2]

With those results I wouldn't see the need in buying redline, A guy would slip right back over to wally world and snag on some more mobil 1

someone's been watching VGG...

Regarding the report, sometimes first run of a new oil has higher wear? Try one more UOA perhaps?

 

[Aholland2804]

someone's been watching VGG...

Regarding the report, sometimes first run of a new oil has higher wear? Try one more UOA perhaps?

I could agree on that one! And yeah I dont think there is a video I haven't seen