what year did EGRS , DPF's, DEF etc..show up on DP's

Thanks all

Bruce Brown wrote:
^^^ DEF is urea fluid.

DEF is Diesel Exhaust Fluid, which is urea.

yes I think most all know what I was alluding to; I guess I should have said DPF Diesel particulate filter system(contained in muffler) pre eura fluid systems but in the end one and the same arrived via different methods

I used DEF meaning Diesel exhaust filter

^^^ DEF is urea fluid.

DEF is Diesel Exhaust Fluid, which is urea.

Tntman wrote:
In 2003 they added the EGR. 2006 came the collecter, 2010 came the DEF system.

my late 2007 ISL 425HP cummins has the DEF muffler/regeneration system

2011 (approx.) is when they went to the urea fluid cleaning system

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

We used to run around 7-7.25, after a few changes we do better now.

We also just returned from a 300 mile trip, some 2 lane, some interstate, some big long hills - and a LOT of generator usage (I'd say 20-25 hours anyway, maybe more) over the entire trip. On this one we averaged 7.6 INCLUDING the generator usage. Needless to say our MPG has indeed improved.

In 2003 they added the EGR. 2006 came the collecter, 2010 came the DEF system.

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

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.

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. ;)

We have a 2008 with a 2006 spec ISL. Not only does it need no DEF it can also burn the higher sulfur diesel. The best part was in our MH the ISL was a $6800 adder, however if we agreed to take a pre-emission engine they'd upgrade to the ISL at no additional charge.

Our previous 2008 Monaco Dynasty 425 ISL Cummins with the first generation DPF design got a regular 7.0-7.5 mpg. We weighed slightly over 40,000 lbs. (sold with 70,000 miles).

Our current coach with the 500 hp Volvo with a DPF and DEF weighing 56,000 lbs., I'm calculating about 6.5-7.0 mpg. (currently, 39,000 miles).

Neither engine has given me trouble with the pollution equipment (so far on the current one).

Safe travels,
MM.