A gentle reminder of why regular oil changes are important.......

Makes me really wonder about those who insist on taking their vehicles back to the dealer for absolutely everything. One of my co-workers has been taking his truck back to the dealer since new for every service or oil change, he is fully capable of doing his own, is also a former mechanic. He recently had a check engine light come on, put his code reader on and got a "cylinder bank rich" or something like that. He pulled the air filter out, still original with 50k miles, and fairly plugged. Got a new one and some cleaner for the MAF sensors, cleared the code and problem solved. Contacted the dealer whose response was that yup, next oil change it was due for replacement, according to the manufacturers service schedule.