- Dyson Analysis
Customer Name : Bill Williams Oil Brand/Weight : 5w-30 Chevron Supreme
Type Equipment : 2002 Pontiac GrandAM Miles/Hours on oil : 5655
Total Miles/Hours : 11100
Results ppm/% Comments (blank=normal)
Wear
Copper 8 Normal
Iron 95 elevated, need better vis retention
Chromium 1 normal
Lead 1 normal
Aluminum 3 normal
Silicon 9 low for new engine
Tin 2 normal
Additives
Molybdenum 12 rings seating
Sodium 0 normal
Magnesium 10 normal
Zinc 842 normal
Potassium 0 normal
Phosphorus 746 normal
Calcium 1580 normal
Physical Properties
Water negative
Fuel negative
Antifreeze negative
Soot 0
Oxidation 23 11.5% low
Nitration 60 30 % avg.
Sulfur 46 fuel,
TBN 10 very high value for a lower cost oil
Vis@100 C 9.4 30w, but shearing to low side
Final Comments : Normal readings except for Iron wear and vis on low end of 30w.
Switch to same brand but use the 10w-30 and see if the wear drops. Some of the wear is break-in
so don't be alarmed. Using Auto-Rx at a 2 to 3 oz rate would reduce the wear also.
This oil and engine look good overall considering it is new and the oil went almost 6000 miles.
Any questions ask away !
[ November 07, 2002, 03:31 PM: Message edited by: Terry ]