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#4598580 - 12/08/17 09:22 PM 2002 Corvette Z06 - Castrol 0w40 Euro - 1122 miles
c5z06 Offline


Registered: 10/29/16
Posts: 20
Loc: NY
Mods:
Supercharger @ 13 psi
Ported Heads
Cam
Meth Injection
Full Exhaust

Oil: Castrol 0w40 A3/B4 Euro
Fram Ultra Filter

Fuel was 93 pump, and for one tank it was a 50/50 mix of MS 109, but that was only once.

Stock short block (crank, rods, pistons), pushing it pretty hard power wise. I did some airport racing during this change, with a lot of WOT pulls.

No new parts were installed between oil changes.

If its not a bearing, what is it? I thought bearing due to the stock bearing contents initially, but I don't really grok how much would be in the oil if the bearing was going bad TBH.




Edited by c5z06 (12/08/17 09:26 PM)

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#4598586 - 12/08/17 09:28 PM Re: 2002 Corvette Z06 - Castrol 0w40 Euro - 1122 miles [Re: c5z06]
ZeeOSix Offline


Registered: 07/22/10
Posts: 17772
Loc: PNW
Probably just from driving it really hard. Did you cut open the oil filter to look for bigger debris? If you have a bearing going bad, you might see something bigger stuff caught in the oil filter.

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#4598589 - 12/08/17 09:31 PM Re: 2002 Corvette Z06 - Castrol 0w40 Euro - 1122 miles [Re: ZeeOSix]
c5z06 Offline


Registered: 10/29/16
Posts: 20
Loc: NY
Good idea, I'll try to cut it open this weekend. It would be nice to rule out bearings, and chalk it up to giving her a beating every time I drive it.

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#4598598 - 12/08/17 09:45 PM Re: 2002 Corvette Z06 - Castrol 0w40 Euro - 1122 miles [Re: c5z06]
Linctex Offline


Registered: 12/31/16
Posts: 6148
Loc: Waco, TX
Does your supercharger use engine oil for lubrication?
_________________________
"The evidence demands a verdict".
(Re:VOA)"it's nearly impossible to actually know the particular additives that are in there at what concentrations."

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#4598648 - 12/08/17 11:19 PM Re: 2002 Corvette Z06 - Castrol 0w40 Euro - 1122 miles [Re: c5z06]
Merkava_4 Offline


Registered: 01/30/07
Posts: 17501
Loc: Clovis, CA
You might try a different oil.

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#4598667 - 12/09/17 12:30 AM Re: 2002 Corvette Z06 - Castrol 0w40 Euro - 1122 miles [Re: c5z06]
FordBroncoVWJeta Offline


Registered: 04/16/16
Posts: 766
Loc: KS
Meth Injection?
_________________________
17 Volkswagen Jetta 1.4T
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#4598714 - 12/09/17 05:49 AM Re: 2002 Corvette Z06 - Castrol 0w40 Euro - 1122 miles [Re: c5z06]
Bjornviken Offline


Registered: 12/06/17
Posts: 237
Loc: Finland
Try Mobil 1 0w-40

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#4598805 - 12/09/17 08:41 AM Re: 2002 Corvette Z06 - Castrol 0w40 Euro - 1122 miles [Re: c5z06]
dave123 Offline


Registered: 01/13/09
Posts: 2313
Loc: wi
Mobil 1 5w50 or 15w50 I think I would try.

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#4598807 - 12/09/17 08:43 AM Re: 2002 Corvette Z06 - Castrol 0w40 Euro - 1122 miles [Re: c5z06]
ARCOgraphite Offline


Registered: 05/17/09
Posts: 11965
Loc: N.H, U.S.A.
Use a racing oil, too much LL detergent and surface competition in the 0w40
_________________________
2014 Nissan Rogue S CVT, OC#9 41392mi-QSUD10W30 + M110A CHAMP Filter; 2017 Subaru Crosstrek CVT OC#2 ?? mi-SOA/Idemitsu 0w20 + SOA Filter

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#4598815 - 12/09/17 08:46 AM Re: 2002 Corvette Z06 - Castrol 0w40 Euro - 1122 miles [Re: ARCOgraphite]
kschachn Online   content


Registered: 12/26/05
Posts: 9393
Loc: Upper Midwest
LL detergent? Too much?
_________________________
1994 BMW 530i, 227K
1996 Honda Accord, 262K
1999 Toyota Sienna, 394K
2000 Toyota ECHO, 267K

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#4598889 - 12/09/17 10:37 AM Re: 2002 Corvette Z06 - Castrol 0w40 Euro - 1122 miles [Re: c5z06]
Rickey Offline


Registered: 11/19/04
Posts: 877
Loc: North Carolina
Given the blower and pump gas at least part of the time; it would be nice to rule out detonation/pre-ignition.

Assuming that the knock sensor is working would tend to minimize suspicion of detonation and or pre-ignition.
If these problems are present however this could "beat up" the bearings and other things.
Run as much octane as you can afford!!
Methanol definitely helps with that.

The lack of lead is usually contrary to a hypothesis of bearing damage. ( possible exception below )

Where did the copper come from?
Does it have an engine oil cooler?

Does it have a manual transmission?

Long shot here: with a stout clutch pressure plate the crankshaft thrust bearing can wear through to the layer that has more copper.
This could result in a lot of copper without a lot of lead...maybe.

The iron is likely from rings and cylinder liners.

My gut feeling is that this UOA is the normal result of hard running.

If it were mine I would consider a racing oil or M1 15W50 as others have suggested.
If you run a true racing oil change it often to keep sludge type deposits to a minimum.

It's entirely possible that this UOA is normal for your engine under the operating conditions that were present.

Good luck and keep it right side up and on the pavement!

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#4598982 - 12/09/17 12:47 PM Re: 2002 Corvette Z06 - Castrol 0w40 Euro - 1122 miles [Re: c5z06]
ron17571 Offline


Registered: 11/25/14
Posts: 166
Loc: AZ
I guess I am old fashioned and that thin oil just makes me nervous. Euro oil in a Corvette?
_________________________
2003 Dodge Caravan 140.000 miles
1992 Ford f-250 217,000 miles

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#4599054 - 12/09/17 02:21 PM Re: 2002 Corvette Z06 - Castrol 0w40 Euro - 1122 miles [Re: c5z06]
Ram02 Offline


Registered: 05/13/17
Posts: 131
Loc: New York Queens
Mobil 1 5w30 is all that Vette needs
_________________________
2013 Malibu 2LT PG 0w20
2013 Accord Sport PG 0w20

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#4599117 - 12/09/17 03:31 PM Re: 2002 Corvette Z06 - Castrol 0w40 Euro - 1122 miles [Re: ron17571]
kschachn Online   content


Registered: 12/26/05
Posts: 9393
Loc: Upper Midwest
Originally Posted By: ron17571
I guess I am old fashioned and that thin oil just makes me nervous. Euro oil in a Corvette?

What thin oil? Who suggested thin oil?
_________________________
1994 BMW 530i, 227K
1996 Honda Accord, 262K
1999 Toyota Sienna, 394K
2000 Toyota ECHO, 267K

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#4599760 - 12/10/17 10:29 AM Re: 2002 Corvette Z06 - Castrol 0w40 Euro - 1122 miles [Re: c5z06]
crainholio Offline


Registered: 10/31/03
Posts: 174
Loc: NJ
When I took school at Bondurant in 2004, their fleet was C5 Corvettes and they ran Mobil-1 15W-50. Speaking to the shop guys, they said they blew two engines early in the program running 5W-30. GM sent engineers, and after analysis they recommended the thicker 15W-50. No blown engines after making the switch.

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