Car Chat General discussion about Lexus, other auto manufacturers and automotive news.

Will Lexus ever go diesel in the US?

Thread Tools
 
Search this Thread
 
Old 09-30-17, 07:23 PM
  #31  
KahnBB6
Moderator
iTrader: (5)
 
KahnBB6's Avatar
 
Join Date: Jun 2010
Location: FL & CA
Posts: 7,197
Received 1,222 Likes on 857 Posts
Default

^^ This. As much as I get annoyed that large SUVs in the U.S. have hardly any turbodiesel options this is where things are going. Indeed it is a case of too little too late.

We should be thankful that Toyota is at least finally embracing performance gasoline turbocharged engines again for the time being.

Ultimately SUVs like this Bollinger are the answer for things Lexus would never make no matter what propulsion source is in them. But Toyota has in the FJ70. It's also among the possible answers to anyone who's ever been frustrated that diesel FJ70's were never sold in the U.S. A 360hp 4WD electric off-roader.

Apply that to any kind of future SUV marketed in any way and it won't be very different in general (other than that this example below is for diehard off-road enthusiasts and certainly not anything that would evoke the Lexus brand ethos). EV passenger cars will not get the insanely low "fuel economy" they do with today's low density batteries forever.

Give it time and the cost will fall.


Last edited by KahnBB6; 09-30-17 at 07:30 PM.
KahnBB6 is offline  
Old 09-30-17, 07:25 PM
  #32  
mmarshall
Lexus Fanatic
 
mmarshall's Avatar
 
Join Date: Oct 2003
Location: Virginia/D.C. suburbs
Posts: 90,665
Received 85 Likes on 84 Posts
Default

Originally Posted by Sulu
Diesels will remain in larger, commercial vehicles, such as buses and trucks but the end is nigh for diesel consumer passenger vehicles.
Why is it OK, though, for diesels to remain and pollute in larger, heavier vehicles (presumably with lax emission standards). when they cannot remain in smaller vehicles that have more stringent controls?
mmarshall is offline  
Old 10-01-17, 02:11 AM
  #33  
peteharvey
Lead Lap
 
peteharvey's Avatar
 
Join Date: Aug 2011
Location: Ca
Posts: 4,196
Received 449 Likes on 294 Posts
Default

Good question.
peteharvey is online now  
Old 10-01-17, 04:13 AM
  #34  
chromedome
Lexus Test Driver
 
chromedome's Avatar
 
Join Date: Aug 2014
Location: CN
Posts: 1,397
Received 49 Likes on 45 Posts
Default

Lexus did have the previous gen IS200d and IS220d for the European market but they've been replaced by the IS300h. They have the last laugh because diesels are being phased out or banned altogether in Europe whereas hybrids and BEVs are in. I love big BMW diesels in their big sedans for the torque and rorty sound but Lexus/Toyota diesels don't come anywhere near in terms of refinement.

I wouldn't bother with an ES diesel either. The next ES with the new Camry hybrid drivetrain could probably hit 45 mpg highway without the hassles of a turbo, DPF and urea refills for emissions control. I'm already getting 45 mpg highway on my current ES300h, albeit with a lighter foot.
chromedome is offline  
Old 10-01-17, 04:20 AM
  #35  
chromedome
Lexus Test Driver
 
chromedome's Avatar
 
Join Date: Aug 2014
Location: CN
Posts: 1,397
Received 49 Likes on 45 Posts
Default

Originally Posted by mmarshall
Why is it OK, though, for diesels to remain and pollute in larger, heavier vehicles (presumably with lax emission standards). when they cannot remain in smaller vehicles that have more stringent controls?
No alternatives, probably? The roads must roll, as Heinlein said.

A truck or bus diesel engine pollutes more in total but per unit of weight carried, it pollutes less than a passenger car diesel. Short and medium range electric buses are making big inroads and EVs for urban deliveries already exist. Battery density isn't enough for long range trucking at the moment but gas-electric hybrids or hydrogen fuel cell vehicles could replace diesels in that space.

Pick off the low hanging fruit first while waiting for cutting-edge technology to mature. I love them mixed metaphors...
chromedome is offline  
Old 10-01-17, 05:11 AM
  #36  
webra
Pole Position
 
webra's Avatar
 
Join Date: Jun 2006
Location: SG
Posts: 360
Likes: 0
Received 6 Likes on 6 Posts
Default

Originally Posted by chromedome
Lexus did have the previous gen IS200d and IS220d for the European market but they've been replaced by the IS300h. They have the last laugh because diesels are being phased out or banned altogether in Europe whereas hybrids and BEVs are in. I love big BMW diesels in their big sedans for the torque and rorty sound but Lexus/Toyota diesels don't come anywhere near in terms of refinement.

I wouldn't bother with an ES diesel either. The next ES with the new Camry hybrid drivetrain could probably hit 45 mpg highway without the hassles of a turbo, DPF and urea refills for emissions control. I'm already getting 45 mpg highway on my current ES300h, albeit with a lighter foot.
Thats true. However the Europeans are now way ahead of the hybrid game too. The 330e and C350e provides both performance and lower emissions and reveals Lexus' rather one dimensional approach to hybrids. And by making higher performance hybrids only at the top end of the range, Lexus alienates those who seek a more dynamic combination in smaller packages.
webra is offline  
Old 10-01-17, 06:32 AM
  #37  
Toys4RJill
Lexus Fanatic
 
Toys4RJill's Avatar
 
Join Date: Nov 2011
Location: ON/NY
Posts: 30,502
Received 62 Likes on 53 Posts
Default

Originally Posted by ArmyofOne
You seem almost offended by my statement. I never said they weren't. However, it is my opinion that for a regular (not high performance) passenger cars, SUVs, and Trucks other than HD ones, Diesel should be an option on most (if not all) of them. They pollute less, are more efficient, and more powerful than gasoline engines when compared side by side. That is an indisputable, proven fact in the industry.

As an example (because its what I know), the 3.0L EcoDiesel offered in Ram 1500's is coupled to an 8 speed transmission and 3.55 final drive gearing, and can tow 9,980lbs. It also achieves 28-29 REAL WORLD highway mpg, in a 5500lb pickup (unloaded, of course). The EcoDiesel has 240 horsepower and 420 lb-ft of torque. It spreads that torque evenly across the powerband. from about 900rpm all the way to 4300.

The 5.7L Hemi also offered in the Ram 1500 is gas-powered (89 octane at that). It has MDS (Multi-displacement-system) that allows 4 cylinders to shut down on the highway and in flowing steady traffic. It can tow 10,000lbs plus, but it needs a 3:92 final drive to do it, even when mated to the same 8-speed automatic. The Hemi has 395hp and 410 ft-lbs of torque, that peak at 5200rpm. The powerband in the Hemi is from 4400-6200rpm. It gets you about 22mpg on the highway with 3.21 gears, 20 with 3.55, and about 18 with 3.92.

^this is all assuming everything else on the trucks is equal, except the engine and gears. The diesel can haul almost the same amount of weight behind it, with less gearing and less HP.

I understand that diesel's cost more to produce...but only barely. They aren't much more expensive to make than gas engines. Nobody here has said the gas engines weren't "very very good." Just that a diesel option would be nice. I know most people wouldn't, but I would buy a diesel ES (and pay a premium for it) before I bought an ES300h. I have never been a fan of hybrids in any form, I don't like the way they drive, I don't like the way they feel (or rather dont). An ES300d would almost certainly outperform the ES350 in both MPG and in acceleration, TQ #'s, etc. Not sure why that's such a bad thing?
.
Not offended at all. I just want to make sure you provide info for both sides of the gas vs diesel argument. A few things. Diesels absolutely cost more to make and cost more to buy. The evidence is everywhere in the MSPR.

Originally Posted by ArmyofOne

As an example (because its what I know), the 3.0L EcoDiesel offered in Ram 1500's is coupled to an 8 speed transmission and 3.55 final drive gearing, and can tow 9,980lbs. It also achieves 28-29 REAL WORLD highway mpg, in a 5500lb pickup (unloaded, of course). The EcoDiesel has 240 horsepower and 420 lb-ft of torque. It spreads that torque evenly across the powerband. from about 900rpm all the way to 4300.

The 5.7L Hemi also offered in the Ram 1500 is gas-powered (89 octane at that). It has MDS (Multi-displacement-system) that allows 4 cylinders to shut down on the highway and in flowing steady traffic. It can tow 10,000lbs plus, but it needs a 3:92 final drive to do it, even when mated to the same 8-speed automatic. The Hemi has 395hp and 410 ft-lbs of torque, that peak at 5200rpm. The powerband in the Hemi is from 4400-6200rpm. It gets you about 22mpg on the highway with 3.21 gears, 20 with 3.55, and about 18 with 3.92.


.
If you look up the stats. A high priced Limited Ram 5.7 and a 3.0 diesel both have the same 6900lb tow capacity. The 5.7 is either 3.21 or 3.92 in the Ram. The 3.0 diesel is fixed at 3.55. The premium to have the 3.0 diesel is $3120 which is what I have saying for so long about diesel, people do not want to pay more. North American consumers like power and performance, its is what sells in North America. The 5.7 RAM is a V8 Hemi rated 395 HP the 3.0 Diesel at 155 hp LESS. To pay more for less, is just not going to happen.

I have no doubt the RAM diesel is great for towing everyday and everyday hauling. But in the big picture, the Hemi Ram is just so much more appealing for most of the population. This applies to almost all of the gas vs diesel offering in the US.

http://www.trucktrend.com/truck-revi...-vs-ecodiesel/
Toys4RJill is offline  
Old 10-01-17, 06:36 AM
  #38  
ArmyofOne
Dysfunctional Veteran
Thread Starter
 
ArmyofOne's Avatar
 
Join Date: Sep 2004
Location: Van Alstyne, TX
Posts: 7,828
Received 160 Likes on 112 Posts
Default

Originally Posted by mmarshall
Why is it OK, though, for diesels to remain and pollute in larger, heavier vehicles (presumably with lax emission standards). when they cannot remain in smaller vehicles that have more stringent controls?
Because simply put, you can't use anything else in large commercial vehicles right now. There is no gasoline engine on this planet that will pull an 80,000 lb 18-wheeler down the highway as efficiently as a diesel engine. The newest Kenworth Sleeper (T870) gets 8mpg when loaded. That's simply astonishing.

Originally Posted by chromedome
No alternatives, probably? The roads must roll, as Heinlein said.

A truck or bus diesel engine pollutes more in total but per unit of weight carried, it pollutes less than a passenger car diesel. Short and medium range electric buses are making big inroads and EVs for urban deliveries already exist. Battery density isn't enough for long range trucking at the moment but gas-electric hybrids or hydrogen fuel cell vehicles could replace diesels in that space.

Pick off the low hanging fruit first while waiting for cutting-edge technology to mature. I love them mixed metaphors...
The only alternative to diesel right now in these applications is LP. And its not as efficient as diesel.

In any case, the aftertreatment systems are expensive, and expensive to repair (they break down CONSTANTLY), but if they ever get it perfected, then they will work great in fleet applications. They just can't be made small enough to work efficiently in a smaller car.

It is unfortunate that diesels are going the way of the do-do. I myself have driven a Jetta TDI wagon, and almost bought it. It was an outstanding car to drive. I just couldn't make the leap of faith to a german car.
ArmyofOne is online now  
Old 10-01-17, 08:17 AM
  #39  
Sulu
Lexus Champion
 
Sulu's Avatar
 
Join Date: Feb 2011
Location: Canada
Posts: 3,309
Likes: 0
Received 30 Likes on 23 Posts
Default

Originally Posted by mmarshall
Why is it OK, though, for diesels to remain and pollute in larger, heavier vehicles (presumably with lax emission standards). when they cannot remain in smaller vehicles that have more stringent controls?
Originally Posted by chromedome
No alternatives, probably? The roads must roll, as Heinlein said.

A truck or bus diesel engine pollutes more in total but per unit of weight carried, it pollutes less than a passenger car diesel. Short and medium range electric buses are making big inroads and EVs for urban deliveries already exist. Battery density isn't enough for long range trucking at the moment but gas-electric hybrids or hydrogen fuel cell vehicles could replace diesels in that space.

Pick off the low hanging fruit first while waiting for cutting-edge technology to mature. I love them mixed metaphors...
Why do we allow diesels to remain in larger commercial vehicles but not on smaller consumer vehicles? There are a number of reasons, some of which have already been answered by chromedome.
  • There is more than one way to measure efficiency, not just how much fuel is burned for every unit of distance travelled. For commercial vehicles, including buses, large trucks and passenger aircraft, efficiency is measured in accordance with the purpose of the vehicle. So, for example, for buses (and passenger aircraft), it is measured in terms of how much fuel is burned for each passenger carried over some distance. In terms of the number of passengers that can be carried over a certain distance, buses (and aircraft) are more efficient than the passenger car.
  • Commercial vehicles are better maintained than the average passenger vehicle so the emissions equipment on a bus or truck is better maintained and operating at peak efficiency than the average passenger vehicle.
  • Implementing emissions controls on a larger, commercial diesel engine may be easier and have a greater effect than emissions controls on smaller, consumer vehicle engines.
  • New, state-of-the-art and expensive emissions technology is easier to sell to commercial fleets than the average consumer. Again, as an example, new, state-of-the-art hybrid-electric and battery-electric buses are being bought by large urban centres but this expensive technology, because of high sale prices, is not of interest to the average consumer.
Sulu is offline  
Old 10-01-17, 08:28 AM
  #40  
Sulu
Lexus Champion
 
Sulu's Avatar
 
Join Date: Feb 2011
Location: Canada
Posts: 3,309
Likes: 0
Received 30 Likes on 23 Posts
Default

The main reason we see so few consumer diesels coming out of Japan is because of decisions made back in the early 1990s that were the reverse of what happened in Europe.

In the early 1990s, Japan brought in emissions standards that lowered the limits of nitrogen oxide emissions, which had a great effect on diesels. About the same time, tax changes made diesel-powered cars more expensive. That dropped demand for diesel-powered consumer cars and automakers responded by investing less in diesels and more in gasoline engines (including gasoline-electric hybrids). While the European automakers continued to invest in diesel and diesel emission controls, Japan did not.

This is the reason why we see so few diesels (and poorly-performing diesels) coming out of Japan.
Sulu is offline  
Old 10-01-17, 09:41 AM
  #41  
chromedome
Lexus Test Driver
 
chromedome's Avatar
 
Join Date: Aug 2014
Location: CN
Posts: 1,397
Received 49 Likes on 45 Posts
Default

Originally Posted by Sulu
The main reason we see so few consumer diesels coming out of Japan is because of decisions made back in the early 1990s that were the reverse of what happened in Europe.

In the early 1990s, Japan brought in emissions standards that lowered the limits of nitrogen oxide emissions, which had a great effect on diesels. About the same time, tax changes made diesel-powered cars more expensive. That dropped demand for diesel-powered consumer cars and automakers responded by investing less in diesels and more in gasoline engines (including gasoline-electric hybrids). While the European automakers continued to invest in diesel and diesel emission controls, Japan did not.

This is the reason why we see so few diesels (and poorly-performing diesels) coming out of Japan.
I think Japan's dense yet sprawling cities meant NOx emissions took precedence over CO2. It's not fun to have a huge cloud of smog hanging over Tokyo in the summer. The same could be said over American efforts to regulate NOx.

The Europeans favored CO2 emissions for whatever reasons while strangely forgetting that smog could also hang over large cities like Paris and London in the summer. They're not ignoring NOx now though, we could see diesel passenger cars kicked out from major city centers within a decade.
chromedome is offline  
Old 10-01-17, 10:46 AM
  #42  
mmarshall
Lexus Fanatic
 
mmarshall's Avatar
 
Join Date: Oct 2003
Location: Virginia/D.C. suburbs
Posts: 90,665
Received 85 Likes on 84 Posts
Default

Originally Posted by Sulu
This is the reason why we see so few diesels (and poorly-performing diesels) coming out of Japan.
That seems to be true of passenger cars, but Isuzu still does a significant line of diesel-trucks.
https://www.isuzucv.com/en/nseries/diesel_specs
mmarshall is offline  
Old 10-01-17, 12:52 PM
  #43  
Toys4RJill
Lexus Fanatic
 
Toys4RJill's Avatar
 
Join Date: Nov 2011
Location: ON/NY
Posts: 30,502
Received 62 Likes on 53 Posts
Default

Originally Posted by Sulu
This is the reason why we see so few diesels (and poorly-performing diesels) coming out of Japan.
This is not true. Toyota sells a wide range of diesel engines in various models all throughout the world. I4, I6, V6 and V8s. Some turbo and some not. Japan is the source of many of these diesel models. The issue is still that diesel models cost to much compared to a comparable gas alternative.

Originally Posted by Sulu
(and poorly-performing diesels).
The only comparable Toyota diesel that I know that comes close to a gaser model is the 4.5 diesel Toyota uses in their LC200 model. It compares well on all performance levels and exceed the 4.6 on some. But there is still a huge premium. Factor in the 5.7 USA model would cost significantly less, it shows why diesel is a very hard sell to US customers.

I would argue that in most parts of the world, a diesel Toyota or car makes more sense. Just not in North America.

Last edited by Toys4RJill; 10-01-17 at 01:07 PM.
Toys4RJill is offline  
Old 10-01-17, 01:17 PM
  #44  
ArmyofOne
Dysfunctional Veteran
Thread Starter
 
ArmyofOne's Avatar
 
Join Date: Sep 2004
Location: Van Alstyne, TX
Posts: 7,828
Received 160 Likes on 112 Posts
Default

Originally Posted by LexsCTJill
Not offended at all. I just want to make sure you provide info for both sides of the gas vs diesel argument. A few things. Diesels absolutely cost more to make and cost more to buy. The evidence is everywhere in the MSPR.


If you look up the stats. A high priced Limited Ram 5.7 and a 3.0 diesel both have the same 6900lb tow capacity. The 5.7 is either 3.21 or 3.92 in the Ram. The 3.0 diesel is fixed at 3.55. The premium to have the 3.0 diesel is $3120 which is what I have saying for so long about diesel, people do not want to pay more. North American consumers like power and performance, its is what sells in North America. The 5.7 RAM is a V8 Hemi rated 395 HP the 3.0 Diesel at 155 hp LESS. To pay more for less, is just not going to happen.

I have no doubt the RAM diesel is great for towing everyday and everyday hauling. But in the big picture, the Hemi Ram is just so much more appealing for most of the population. This applies to almost all of the gas vs diesel offering in the US.

http://www.trucktrend.com/truck-revi...-vs-ecodiesel/
You aren't getting less. And those stats are off. 6900lbs is incorrect. https://www.ramtrucks.com/en/towing_guide/

The Ram 1500 Limited Hemi with 3.92 gear set has a towing capacity of 10,320lbs.

The Ram 1500 Limited Diesel with a 3.92 has a towing capacity of 8,710. So it is a bit less than the Hemi, but it will be much more efficient both when towing and not. You can absolutely get a 3.92 limited slip with the diesel. The damn diesel gets 29mpg hwy. What other full size truck can do that?

And, less HP does not equal less power. Its how the engine uses it that matters. And you get the same amount of TQ out of the diesel in half the engine size. That is the point here.

And no, it doesn't cost that much more to produce. Car/Truck manufacturers put a premium on them because they can make more money. They cost next to nothing extra when FCA (or any other co) buys the engine vs. the gas ones. Now, if you are talking big diesels, that is a whole different argument.

So in the end, you pay your $3,120 premium (using Ram as an example) and you get more...

More MPG
More Longevity (diesels last much longer)
More torque out of less engine
slightly higher maintenance costs
More resale value

You also get less:

Less CO2
Less breakdowns
Less HP
Less long term repair expense

So it really is just a matter of which consumer wants what option. Which brings me back to the original question...

If I want a diesel because it will work well for me, why is there not even one offered? I promise you if I could get a Diesel LX SUV in a late model, I would own it tomorrow.
ArmyofOne is online now  
Old 10-01-17, 01:29 PM
  #45  
Toys4RJill
Lexus Fanatic
 
Toys4RJill's Avatar
 
Join Date: Nov 2011
Location: ON/NY
Posts: 30,502
Received 62 Likes on 53 Posts
Default

Originally Posted by ArmyofOne
You aren't getting less. And those stats are off. 6900lbs is incorrect. https://www.ramtrucks.com/en/towing_guide/

The Ram 1500 Limited Hemi with 3.92 gear set has a towing capacity of 10,320lbs.

The Ram 1500 Limited Diesel with a 3.92 has a towing capacity of 8,710. So it is a bit less than the Hemi, but it will be much more efficient both when towing and not. You can absolutely get a 3.92 limited slip with the diesel. The damn diesel gets 29mpg hwy. What other full size truck can do that?

And, less HP does not equal less power. Its how the engine uses it that matters. And you get the same amount of TQ out of the diesel in half the engine size. That is the point here.

And no, it doesn't cost that much more to produce. Car/Truck manufacturers put a premium on them because they can make more money. They cost next to nothing extra when FCA (or any other co) buys the engine vs. the gas ones. Now, if you are talking big diesels, that is a whole different argument.

So in the end, you pay your $3,120 premium (using Ram as an example) and you get more...

More MPG
More Longevity (diesels last much longer)
More torque out of less engine
slightly higher maintenance costs
More resale value

You also get less:

Less CO2
Less breakdowns
Less HP
Less long term repair expense

So it really is just a matter of which consumer wants what option. Which brings me back to the original question...

If I want a diesel because it will work well for me, why is there not even one offered? I promise you if I could get a Diesel LX SUV in a late model, I would own it tomorrow.
Your write is not reality. I would love for you to prove that diesel engines do not cost more to produce than a gas model. The MSRP reflects this all throughout the world.

Here is the best post I have read:

"i was on the same boat,

bought a hemi saved myself like $7k in the process

do realize you pay a huge premium for that
diesel motor diesel motor
that for me:

A: i do not tow
B: i wanted to lift my truck and still get good mpg
C: i really wanted a diesel due to my area having diesel cheaper then gas, is not a big surprise
D: I wanted to brag and say my ram gets 28+ mpg yada yada yada

then i crunched the #'s

the
ecodiesel ecodiesel
premium required me to drive the truck for over 125k miles just to break even on the extra costs up front

the ecodiesel has higher maintenance costs

the ecodiesel has a longer warmup time

the ecodiesel drinks DEF 150% more then the manual says (more costs again)

i dont plan on owning a vehicle for over 100k, basically a 3-5 year turn around and ill trade it in towards my next truck

if you test drove either one, the hemi wins in pure grin factor

in the end i felt like i saved myself big $ by going hemi instead of
ecodiesel ecodiesel
after thinking it out and looking at it, instead of just falling for the salespitch hype of "best mpg in class"

but if you tow a lot, id get a 2500, there was a long time and a good reason why a diesel was dropped from a 1/2 ton lineup......

oh and fyi the hemi does have a higher tow rating then the ecodiesel LOL"


http://www.ramforum.com/f44/eco_diesel_vs_hemi-65993/
Toys4RJill is offline  


Quick Reply: Will Lexus ever go diesel in the US?



All times are GMT -7. The time now is 09:47 PM.