It's hard to understand because it can be BOTH.
Originally Posted by Yeoman
The BMW oil change interval is 15K miles OR 1 year, whichever comes first. I don't know why this is so hard to understand.
Oil change at the 1 year mark and then again at 15,000 miles.
"sometimes you're the windshield .... sometimes you're the bug"
2014 328i Mojave Metallic
2009 328i Black Sapphire Metallic
2007 328i Black Sapphire Metallic
2007 Honda S2000 Berlina Black
(Hey Jim... am I diversified?)