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

Joined
Feb 7, 2008
Messages
400
Location
USA
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:
 
Joined
Nov 23, 2003
Messages
1,648
Location
WA
Why is the copper and iron so high still? The engine should be broken in by 36K?
 
Joined
Sep 8, 2005
Messages
15,229
Location
Canada
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.
 
Top