Just bought a new 2003 CRV. Salesman said I had to use Honda Motor
Oil only in it or the warranty would be void. I looked in owners
manual and found nothing about this. Any CRV owners out there know
anything about this Oil or is this dealer just trying to drum up
business.

It's a type of 'scare tactic' to get you to use the dealership mechanics.
As long as the proper type of oil is used, and is done by a licenced
mechanic who provides proof by means of a receipt that all mainainance was
done properly as the maintanance schedule requires, your warranty is fine.
Doing it yourself might void the warranty.


L

What the service man should have said was that before the first 3000
miles don't change the oil. Honda adds properties to the oil on new
models to give better performance and longevity to the engine. This
is was my Honda mechanic told me when I wanted to change the oil at
2500 miles on my new 2001 Honda CRV. I was going to go to Colorado
at the time and didn't want to deal with an oil change while I was
up there vacationing. Hence,he said "See ya when you get
back...just watch the oil level." As far as just using Honda oil
each time you need an oil change...that's full of junk.
Hope this helps.