Yeah the feds really have overstepped on the practicality side of things. If the money that has been spent on emissions technology for diesels had been spent on efficiency instead, we would all be much better off. It is a shame that all diesel vehicles today don't have better fuel economy than the diesels of 20 years ago. Every gas motor today is better than those 20 years earlier with respect to economy.
Diesel News: POST HERE
- Thread starter Scott Brady
- Start date
It's true that 40 years of experience with emissions control systems for gasoline engines has made a big difference. Gas engine performance in the 1970s was pitiful compared to today's models. Some production engines today produce 500 hp on pump gas with no emissions problems. In comparison, diesel emissions control technology is in its infancy.
Without emissions controls on internal combustion engines, Los Angeles and San Jose (both basins with mountains blocking air circulation) would have massive air pollution problems today. So I'm a supporter of the use of emissions controls on gas and diesel engine vehicles.
Without emissions controls on internal combustion engines, Los Angeles and San Jose (both basins with mountains blocking air circulation) would have massive air pollution problems today. So I'm a supporter of the use of emissions controls on gas and diesel engine vehicles.
Kaisen
Explorer
Cruze diesel makes 280 ft-lb for up to 10 seconds at a time under WOT. The 258 ft-lb rating is sustained. This is not unlike certain Porsche Turbo models.
GM has stated that it will be rated "at least 43 mpg" highway, but has not released the official EPA numbers yet
blue dog
Adventurer
When i bought my first diesel ram in 2000, diesel was much cheaper then 89 octane, now, diesel has surpassed the price of premium and has been for many years now, what is the reason for this ? Currently i am looking for my 3rd diesel ram, but i want a 5.9 with 6 speed, and have no interest in a 6.7 what so ever.
Here's a thought-provoking article from the Detroit Free Press that shows how new gas engines are approaching the torque and fuel efficiency of small diesel engines. The gas motors are less expensive to build and buy, and don't require complex emissions controls.
http://www.detroitnews.com/article/20130401/AUTO01/304010352/1148/rss25
With ULSD not yet available in many places outside USA and Canada, it's hard to think of a modern (post-2007) diesel as a good choice for overland adventuring south of the border.
http://www.detroitnews.com/article/20130401/AUTO01/304010352/1148/rss25
With ULSD not yet available in many places outside USA and Canada, it's hard to think of a modern (post-2007) diesel as a good choice for overland adventuring south of the border.
Im curious as to why the motor can attain 280ft/lbs in short bursts but not sustained? I am guessing it would have to be a heat issue?
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Regcabguy
Oil eater.
From what I've read,we export diesel to Europe in exchange for gasoline as their diesel needs are greater. I special ordered my 5.9 6-speed from Dave Smith Motors as nobody in SoCal had one. It's been much more reliable than my '98.5 5.9 auto CTD. Diesel was $1.00/gallon in '99 when I got my first CTD. it's appalling that a substance that popped up on Jed Clampett's property could cost so much. Add on 3.8 cents/gallon here in July to reward us for using less. Board of Equalization says their revenue is down. ******?
Regcabguy
Oil eater.
I use NTG Racing here for any work. They had a 2010 Mexican Dodge CTD in there trying to get a Smarty programmer to work. Marco of MADS supplied an update to enable it to function. That truck had metric gauges and EGR but no DPF as ULSD is not available south of Guerrero Negro or most of the mainland.
Dan Grec
Expedition Leader
Have you run it for a sustained period of time on > 500ppm sulfur diesel?
How about > 1000 ppm?
What mods did you do?
-Dan
I have yet to take a trip to Mexico and actually try it out. But I have done the same mods that many of the Mexico travelers do and there is no conceptual reason why it wouldn't work. Really the only reason that modern diesels cant run on high sulfur fuel is their emissions systems. The fuel system, engine, and turbo can't tell the difference. It is the extra soot that is produced that plugs up DPF's and such. Lets just say my truck doesn't have those limitations any longer. My list of mods is in my sig, or you can check out my trucks thread that I started here: http://www.expeditionportal.com/forum/threads/75693-New-addition-to-my-family!
"Lets just say my truck doesn't have those limitations any longer."
Since you live in California, what happens when you take your modified 2012 RAM 2500 in for its annual smog inspection? Maybe the RAM 2500 is in a weight category that has different rules than light trucks.
Since you live in California, what happens when you take your modified 2012 RAM 2500 in for its annual smog inspection? Maybe the RAM 2500 is in a weight category that has different rules than light trucks.
Subaru Viziv
At the recent Geneva Auto Show, Subaru showed a diesel electric hybrid powertrain. It was composed of
-- A 2.0L 4 cylinder turbodiesel powering the front wheels through a CVT
-- An electric motor at each rear wheel provides AWD. Two motors allows computer-controlled torque vectoring to improve handling on pavement, and provide traction control independently to each wheel in the dirt.
This sort of "through the road" AWD looks attractive to me. No need for a rear axle, rear differential or drive shaft. The electric motors attach to the wheel hubs.
At the recent Geneva Auto Show, Subaru showed a diesel electric hybrid powertrain. It was composed of
-- A 2.0L 4 cylinder turbodiesel powering the front wheels through a CVT
-- An electric motor at each rear wheel provides AWD. Two motors allows computer-controlled torque vectoring to improve handling on pavement, and provide traction control independently to each wheel in the dirt.
This sort of "through the road" AWD looks attractive to me. No need for a rear axle, rear differential or drive shaft. The electric motors attach to the wheel hubs.
As we've previously discussed, the 2014 Chevrolet Cruze compact sedan will offer a 2.0L diesel engine option. Now the Cruze has an official EPA rating for fuel economy: 46 mpg in highway driving. The similarly equipped Cruze Eco with a 1.4L turbo gasoline engine and automatic transmission is rated at 39 mpg highway. So based on the EPA numbers, the diesel offers about 18% better fuel economy in highway driving.
Since diesel fuel often costs 10% more than regular unleaded gas, and the Cruze Diesel requires the purchase of diesel exhaust fluid to help control exhaust emissions, the operating costs of the gas and diesel Cruze models will be similar -- providing the EPA estimates prove to be accurate. In the past, the EPA has tended to overestimate highway mpg for gas engines, and underestimate diesel performance on the highway.
Chevrolet plans to ask about $26,000 for the Cruze diesel. That's about the same as the VW Jetta sedan with diesel engine and automatic transmission. The Chevrolet Cruze Eco with similar equipment costs about $22,000.
Will GM put the 2.0L diesel, with its 258 ft lb of torque and 6 speed Aisin automatic transmission, in the new Colorado pickup? Or maybe in small SUVs like the Chevy Equinox? The AWD Equinox with gas V6 that produces torque similar to the Cruze diesel engine gets only 23 mpg highway.
Since diesel fuel often costs 10% more than regular unleaded gas, and the Cruze Diesel requires the purchase of diesel exhaust fluid to help control exhaust emissions, the operating costs of the gas and diesel Cruze models will be similar -- providing the EPA estimates prove to be accurate. In the past, the EPA has tended to overestimate highway mpg for gas engines, and underestimate diesel performance on the highway.
Chevrolet plans to ask about $26,000 for the Cruze diesel. That's about the same as the VW Jetta sedan with diesel engine and automatic transmission. The Chevrolet Cruze Eco with similar equipment costs about $22,000.
Will GM put the 2.0L diesel, with its 258 ft lb of torque and 6 speed Aisin automatic transmission, in the new Colorado pickup? Or maybe in small SUVs like the Chevy Equinox? The AWD Equinox with gas V6 that produces torque similar to the Cruze diesel engine gets only 23 mpg highway.