When did DEF become required ?
Thinking of upgrading to a DP. I want to avoid having to deal with DEF. What year models did it become a requirement ?
Forum Discussion
Mr.Mark wrote:
Mr. Dave, we bought the first year coach with the particulate filter on the 2007 chassis (2008 coach). We have had zero problems with it. DEF came out in 2010 if I'm not mistaken and our new coach will have it. I'm not concerned. The word on the street is the DEF units get a little better fuel mileage.
We have no smoke come out on heavy hill climbs. The regeneration cycle happens once about every 10,000 miles. There is a light on the dash to tell me the process is starting/happening.
If you want a totally emission-free diesel vehicle, go 2006 or earlier. It's funny, I remember when people were going crazy when the catalytic converters came out in 1975..... and fully implemented in '79-'80. Same happened with shoulder seat belts with the buzzers.
Go with the environmentally friendly units. Save a tree. LOL! (just kidding). Buy and drive what you like, this is America.
A side note: Before catalytic converters, the Los Angeles smog was horrendous. You couldn't see houses off the I-10 Freeway, especially, in San Bernardino, CA. There is still some smog but 95% better. Low emission vehicles are important for our health.
MM.
Yes, I remember going into the gray haze in Los Angeles that was always present down there. However, reduced car emissions was only part of that. Much of that air was cleaned up by closing down almost all manufacturing and sending those jobs to other Countries who now have the dirty air.
