OP...could you describe your sampling method during the oil change? Perhaps pulling a sample too early or late in the process or contaminating it with a dirty drain pan might lead to higher wear numbers/viscosity. You seem pretty meticulous though...so not a really high likelihood.
Good...
Code:
OIL ML5w30 + 1/2 qt Lucas additive
MILES IN USE 3.6k
MILES 105.0k
SAMPLE TAKEN 01/16/14
ALUMINUM 2
CHROMIUM 1
IRON 23
COPPER 3
LEAD 4
TIN 2
MOLYBDENUM 37
NICKEL
MANGANESE...
Don't think the OP has checked back in but I'll chime in again anyway:
I too would use an OLM if available. Most of the Ford products (aka Econoline and Crown Vic) have not had an oil life monitor that I am aware of though. Interestingly, the Crown Vic does have an engine hour meter that is...
To the OP: good question and noble goal to cut spending.
I am also a fleet manager for a private university in Lexington, VA. We have many vehicles which are driven by students as part of a sober ride program. Because these vehicles are operated in severe conditions like police cars (countless...