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

Messages
397
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:
 
Messages
15,056
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.
 
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