It's exactly 3.5 quarts. It's ALWAYS been EXACTLY 3.5 quarts including filter.

Vacs - If you're putting in "4 to 5" you're risking screwing up your motor.

hiyall - Some dealers just say whatever they think will shut you up. I've been amazed at some of the just blatantly wrong things people have been told by dealers and service managers that should know better.