Mobil 1 5w30, 5,010 miles, 2006 Corvette

[chadwick]

Engine: GM LS2, 6.0L 364 CI V-8
Vehicle mileage: 6,134
Oil mileage: 5,010
Make-up oil added: N/A

Aluminum: 8
Chromium: 2
Iron: 32
Copper: 312
Lead: 8
Tin: 1
Molybdenum: 80
Nickel: 0
Titanium: 0
Potassium: 3
Boron: 151
Silicon: 117
Sodium: 9
Calcium: 2918
Magnesium: 15
Phosphorus: 782
Zinc: 938
Barium: 0

SUS Viscosity @ 210 degrees: 62.7
Flashpoint: 415 degrees F
Fuel: < 0.5%
Antifreeze: 0.0%
Water: 0.0%
Insolubles: 0.3%

 

[IslaVistaMan]

Looks like the M1 5w30 worked well for you as a break-in oil, Chad. The oil stayed in grade and aside from a fairly heavy wear metals load, appears to have done (or is doing) its job very well.

Good on you for changing the initial fill early and continuing with a top-quality synthetic. Even with the early change-out, you can still see how this engine is spitting debris as break-in continues.

Did you change the oil when taking this sample?

 

[TR3-2001SE]

I would think this UOA says change oil more frequently until broken in. I would go to 3000 miles changes for the next 2 changes. No other problems which is good.

 

[buster]

Looks good. Wear should drop in time. I'd run another 5k and see where you're at. If German Castrol 0w30 is available, I'd recommend that also.

 

[chadwick]

Yep, this was a full oil & filter change. I switched to the Mobil 1 M-107 filter on the first oil change instead of the delco filter, and stayed with that on this one. It had been about 9 months since the previous change.

My oil life indicator on the car was at 34% at this change, which is pretty consistent with my usage levels as compared to my previous Corvette.

The oil change report had this in the comments:

quote:

---

The high wear metals and silicon are not unusual finds in the oil from your new GM engine.
The wear is high due to break-in of new parts, while silicon is from sealers and sand-casted parts.
Universal averages show typical wear metals for this engine after 4540 miles use. We expect your
engine will look that good or better in future oil changes. The 6.0L tends to wear nicely, and yours will
too once it's past wear-in. Keep oil changes at 4,500 to 5,000 miles until wear-in is complete. Check
back to establish trends.

---

 

[IslaVistaMan]

Blackstone has it right on the money, Chad -- your next oil change will show tremendous improvments in the wear-metals counts.

5,000 mile oil changes look perfect. Keep doing the UOAs every time, and you'll really be able to see what's happening.

 

[427Z06]

Gee...I would of thought someone, cough, cough, would of called this abrasive slurry and to change it out earlier.

 

[Jason8691]

I changed mine in my 05 GTO at 500 miles

 

[IslaVistaMan]

Hehe -- I *would* have, 427Z06, but I was saving that one for Ray H

Gotta love that "soft metal" copper count, though. A moderately abrasive slurry, indeed!

Chad, no worries on that, btw. Hang around long enough, and you'll see worse around here (much worse).

And welcome to BITOG, btw!

 

[Ray H]

Ah, my reputation preceeds me. (Honestly, 427Z06...

) So much for the urban myth that "Engines are broken in by the time ya' get 'em home from the stealership."

 

[Patman]

This is more proof that the copper is pretty harmless in the LS series of engines, since even though it's at 312ppm, the rest of the wear metals aren't too terrible considering the freshness of this engine.

Like I said on Corvetteforum as well, the silicon here is high but it's definitely not all dirt, otherwise the rest of the wear metals would be very high.

PS-I can't wait for the day when I can trade my 98 Corvette for a C6! I love my C5 a lot, but the C6 is so much better in so many ways!

 

[427Z06]

quote:

---

Originally posted by Ray H:
(Honestly, 427Z06...

) So much for the urban myth that "Engines are broken in by the time ya' get 'em home from the stealership."

---

I never said anything like that...EVER. If you want to quote me, get your facts straight.

 

[TooSlick]

You could install a 1 um, bypass filter on this engine and you'd still see elevated levels of Cu and silicon(e). Much of this stuff is sub-micronic or dissolved metallic ions, so I wouldn't lose any sleep over it.

This is an excellent wear pattern for a new V-8 after 5000 miles. I'd go with the Mobil 1/EP instead of the regular stuff for long term useage.

TS