QS QHP SYN 5W-30 / Chevy Malibu 3.5L / 5,900 MI

[smithph]

Here are the results of almost 6K miles of 80/20 city/hwy driving. 2005 Chevy Malibu 3.5l V6.

The 1st column is the QS UOA and the second column is the UOA of the last OCI done using Mobil 1 0W-30 AFE.

Oil: QuakerState QHorsepower 5W-30 AFE, SM & CF-4,

No makeup oil needed.

I changed the oil at 10% on the OLM on both runs. This time the OLM indicated 10% at 5,900 miles of 80/20 City/Hwy driving. The last run on Mobil 1 0W-30 had an OLM of 10% at 6,900 miles but that run was 60/40 City/Hwy driving. It would appear a change in hwy vs city driving does effect the OLM.

Lab: Blackstone
MI/HR ON OIL: 5,900
MI/HR ON UNIT: 36,177
DATE: 04-15-2009

Item: QS QHorsePower Syn 5W-30 / Mobil 1 0W-30 AFE
ALUMINUM: 2/2
CHROMIUM: 1/1
IRON: 18/33
COPPER: 25/37
LEAD: 4/9
TIN: 1/3
MOLY: 54/101
NICKEL: 0/1
MANGANESE: 2/3
SILVER: 0/0
TITANIUM: 0/0
POTASSIUM: 2/1
BORON: 51/40
SILICON: 16/21
SODIUM: 5/7
CALCIUM: 2192/2268
MAGNESIUM: 11/12
PHOSPHOROUS: 631/589
ZINC: 783/765
BARIUM: 0/0

SUS VISC. @210F: 58.8/62.8
Cst Visc. @100C: 9.88/11
Flashpoint: 395/425
Fuel %: .5/.5
Antifreeze %: 0/0
Water %: 0/0
Insolubles %: .3/.3
TBN: 2.7/4.2
TAN:
ISO Code:

 

[Finklejag]

Why is the copper and iron so high still? The engine should be broken in by 36K?

 

[addyguy]

Not bad results, and it seems it worked well with the OLM - if you'd run it to 0%, you'd probably be close to a 2 TBN, which is where many on here say to change an oil.

I'd say copper is typical GM; and is much better here than with the M1.

 

[PandaBear]

Not bad, seems like a 7500mile city driving oil to me.