โAug-11-2017 11:46 AM
โAug-16-2017 01:42 PM
โAug-12-2017 12:48 PM
Bruce Brown wrote:
^^^ DEF is urea fluid.
DEF is Diesel Exhaust Fluid, which is urea.
โAug-12-2017 12:18 PM
โAug-12-2017 11:57 AM
Tntman wrote:
In 2003 they added the EGR. 2006 came the collecter, 2010 came the DEF system.
โAug-12-2017 11:20 AM
hostage wrote:Bruce Brown wrote:hostage wrote:BigSkyBob wrote:
When I ordered my rig I demanded a non DEF motor and they found one somewhere. So I have a 2008 rig with what I'm told is a 2006 Cummins motor. Kinda rare I believe. I generally get close to 10 MPG but never run my rig past the torque curve at 62 MPH/1450 RPM.
u must have a special order gear ratio also cause any 40 ft isc or isl diesel Motor home I have owned/driven are all about 1650 @62 MPH
and 10MPG is unheard of in either unit;;
JohnnyT has a higher rear end gear than ours and gets ~10 with his all day long.
well I don't know how as I have never read about owned or talked to anyone with a ISL that got better than 8.5 and that's flat land driving;; 10MPG must have been real easy freeway steady flat road driving I can tell you no one never averaged anything near that
โAug-12-2017 10:51 AM
โAug-12-2017 08:31 AM
Bruce Brown wrote:hostage wrote:BigSkyBob wrote:
When I ordered my rig I demanded a non DEF motor and they found one somewhere. So I have a 2008 rig with what I'm told is a 2006 Cummins motor. Kinda rare I believe. I generally get close to 10 MPG but never run my rig past the torque curve at 62 MPH/1450 RPM.
u must have a special order gear ratio also cause any 40 ft isc or isl diesel Motor home I have owned/driven are all about 1650 @62 MPH
and 10MPG is unheard of in either unit;;
JohnnyT has a higher rear end gear than ours and gets ~10 with his all day long.
โAug-12-2017 08:25 AM
hostage wrote:BigSkyBob wrote:
When I ordered my rig I demanded a non DEF motor and they found one somewhere. So I have a 2008 rig with what I'm told is a 2006 Cummins motor. Kinda rare I believe. I generally get close to 10 MPG but never run my rig past the torque curve at 62 MPH/1450 RPM.
u must have a special order gear ratio also cause any 40 ft isc or isl diesel Motor home I have owned/driven are all about 1650 @62 MPH
and 10MPG is unheard of in either unit;;
โAug-12-2017 08:23 AM
tinkerer wrote:
A lot of 2007 motorhomes have 2006 engines in them. That was before some serious anti-pollution devices. I own one of these coaches. I was told by a diesel mechanic the DEF engines are better engines than the bridge engines before DEF. ๐
โAug-12-2017 08:07 AM
โAug-12-2017 07:33 AM
BigSkyBob wrote:
When I ordered my rig I demanded a non DEF motor and they found one somewhere. So I have a 2008 rig with what I'm told is a 2006 Cummins motor. Kinda rare I believe. I generally get close to 10 MPG but never run my rig past the torque curve at 62 MPH/1450 RPM.
โAug-12-2017 07:08 AM
โAug-12-2017 06:00 AM
โAug-11-2017 10:58 PM
wildmanbaker wrote:haddy1 wrote:
The "serious" stuff started with the 2007 EPA and was changed again in 2010. Most everyone used DEF to meet the 2010 standards. Actually, the 2010 engines get better mileage because they can build them looser.
My 2012 Phaeton gets better mileage than my 2003 DP got, even though it weighs about 7000 pounds more.
Could you please tell us people that are not up on the current Diesels, what "build them looser" means?