That's like closing the barn door after the horse has be stolen.
       God Bless America, ßill O|||||||O
mailto:LWHughes3rd@aol.com http://www.billhughes.com/

That's the recommended change interval, for most modern gasoline engine
vehicles, for "normal" operating conditions.  "Three months or 3,000 miles,
whichever comes first" is not necessary unless you want to make oil
companies rich.  Also, people in the rest of the world pay a bit more for
petroleum products than we do.

Now if you play in sand, like Bill does, or take frequent short trips in
cold weather or race then you would want to consider a shorter change
interval.  And if you are considering going to 10,000 k, like the rest of
the world does, then use high quality oil and a decent filter.  I like a
Mobil 1 filter, Valvoline 10W30 petroleum based oil, and oil changes once a
year whether needed or not.  (I have four vehicles and rarely get 10,000 k
on any of them before an oil change.)

Earle