Quote:
Originally posted by oldnavy
Boneheaddoctor the oil analysis was originally started so company's could detect a truck developing problems before break down to prevent losses in revanue from vailed deliveries or deadline dates, not to mention repairing an engine before it blows it guts all over the pavement. 
It can be used the same way once a year or so by someone here.  To help prevent sudden failure of your engine or even excessive wear from an airfilter not fitting correctly.
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OK, with big rigs with 10+ gallons of oil and real long change intervals that makes a lot of sense since many go million+ miles between rebuilds.
On a car where it doubles oil change costs even with frequent changes, more frequent than really needed. Well I don't doubt the more you know about them the more sense they make.
I'll just lurk a bit more and read on........