There are many people that do not drive 20,000 kms a year.
I think visiting the dealer every 3 months is overkill and helps their cash register much more than your car.
I would change oil & filter faithfully every 5000 or 6000 kms regardless of how long it takes you to get there. If you have warranty issues there is no way you can be denied if you show this was done.
I have 2 cars and due to limited driving I get and oil change on them about every 7 or 8 months. My cars are 8 and 11 years old and run like new. Because I do not do many oil changes do to my limited driving I decided to splurge and run on sythentic oil.
I pamper my cars. Dealers however are expensive and encourage you to over maintain you car. I would highly recommend finding an good honest recommended local mechanic and get away from their BS and pressure to spend more money than needed.
Interesting note: The dealer would have me do a wheel alignment every year or 20,000 kms. I have a 2000 Accord with 75,000 kms. Guess how many wheel alignment I have had done?

None, zero, na da........
I drive easy brake before pot holes (not in them) I cannot avoid. Car has never pulled or tracked funny. My tire wear is perfert and I am still running original tires (and original Artic Alpins winters). Hopwever, if I ever did sense a problem I would get it addressed right away.
The answer is get work done when required not based on somebody's clock.
Why do I think I am going to get roasted for this post. Bring it on baby....
