Mods please delete

[Ratbert]

I recently asked you that exact question and you told me it is barely noticeable!

Wait, what? It's barely noticeable in my 3.0L EcoDiesel. A naturally aspirated engine suffers losses from altitude at ~3x that of a turbocharged engine.

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[MayThe4x4BWU]

Hyperbole, thy name is Jeep

 

[blackwater]

I'm aware.

So... piston count?

I’m not a guru, but logic dictates the fewer pistons, the less emissions. There are probably exceptions, but when four plugs fire, vs six, it equals less emissions. 60’s, 70’s, 80’s, 90’s had muscle cars that ran on V8’s. Now it is difficult to find a new V8. Why? They are a blast, consumers bought them, but emission standards tightened. It is called government control phased in slowly, so people adapt. Admittedly, I am of the mind, less government the better, but if a person stops to smell the roses, they will realize, we are not a ”free“ society. Cars are just one example. I have money and should be able to buy the car that I want, with 8, maybe 12 cylinders.……..without getting penalized. I can write tons of examples, but all the Kumbaya people on this forum, will attack…not my gig.

 

[blackwater]

Wait, what? It's barely noticeable in my 3.0L EcoDiesel. A naturally aspirated engine suffers losses from altitude at ~3x that of a turbocharged engine.

Maybe I missed the diesel part, but I specifically asked, because you live in Colorado, if you noticed a power reduction at attitude.

 

[Odyssey USA]

We’ve owned both eTorque versions of the 2.0 and 3.6 concurrently. The Sahara ended up with 35’s, Rubicon fenders, 1” Synergy lift (mostly a modest overland setup) and 4.56’s. The Rubicon is stock. We both liked the 2.0 more. More power and economy. Went through Wyoming, Montana, Idaho, and 10-12k feet in Colorado. 2.0 for the win. Less shifting in the 2.0 which will add wear on the bands and clutch packs too. So there’s that.

Seems the engine braking in both from the eTorque is helping brake pad life too. Mostly hwy use for both with road trips and commute but I know on the Rubicon the front pads still have 6mm left at 100k miles. Impressive.

The Sahara was paid off and we needed the money so I had to sell it. Sucks. Starting over with the Rubicon. Just found corrosion on it too which the Sahara didn’t have. I actually liked the antique engine sounds the 2.0 made…like the old 4 cylinders in the OG military Jeeps to me.

And I just did the oil cooler and plugs on the 3.6. Not fun compared to the 2.0. Next I get to remove the MGU, coolant lines, fan shroud, air box, etc just to swap pulleys and belts. The dealer wanted over $1200. NOPE.

 

[Ratbert]

Maybe I missed the diesel part, but I specifically asked, because you live in Colorado, if you noticed a power reduction at attitude.

And here was my response:

Mine had a manual, so it was pretty bad living at 7,400 feet. Lots of people on the forums claim they don't notice the 3% drop in power per 1,000 feet, but that's hard to imagine. Pulling a tiny trailer up those passes was a stressful nonstop switching between the engine screaming in 3rd and bogging down in 4th.

I assume it'd be quite a bit better with our exceptional automatic.

My current rig is an EcoDiesel, which has plenty of power, but I still have to floor it over some of our passes. Note that mine is stupidity heavy, especially when camping.

Please point out where I said it's barely noticeable.

I'll wait.

 

[AnnDee4444]

I’m not a guru, but logic dictates the fewer pistons, the less emissions. There are probably exceptions, but when four plugs fire, vs six, it equals less emissions. 60’s, 70’s, 80’s, 90’s had muscle cars that ran on V8’s. Now it is difficult to find a new V8. Why? They are a blast, consumers bought them, but emission standards tightened. It is called government control phased in slowly, so people adapt. Admittedly, I am of the mind, less government the better, but if a person stops to smell the roses, they will realize, we are not a ”free“ society. Cars are just one example. I have money and should be able to buy the car that I want, with 8, maybe 12 cylinders.……..without getting penalized. I can write tons of examples, but all the Kumbaya people on this forum, will attack…not my gig.

So government dictates emissions, not pistons.


Smelling the roses... emissions... the irony 🤌

 

[Odyssey USA]

We’ve owned both eTorque versions of the 2.0 and 3.6 concurrently. The Sahara ended up with 35’s, Rubicon fenders, 1” Synergy lift (mostly a modest overland setup) and 4.56’s. The Rubicon is stock. We both liked the 2.0 more. More power and economy. Went through Wyoming, Montana, Idaho, and 10-12k feet in Colorado. 2.0 for the win. Less shifting in the 2.0 which will add wear on the bands and clutch packs too. So there’s that.

Seems the engine braking in both from the eTorque is helping brake pad life too. Mostly hwy use for both with road trips and commute but I know on the Rubicon the front pads still have 6mm left at 100k miles. Impressive.

The Sahara was paid off and we needed the money so I had to sell it. Sucks. Starting over with the Rubicon. Just found corrosion on it too which the Sahara didn’t have. I actually liked the antique engine sounds the 2.0 made…like the old 4 cylinders in the OG military Jeeps to me.

And I just did the oil cooler and plugs on the 3.6. Not fun compared to the 2.0. Next I get to remove the MGU, coolant lines, fan shroud, air box, etc just to swap pulleys and belts. The dealer wanted over $1200. NOPE.

The inherent efficiency of a 4cyl vs more cylinders comes from less friction from less moving parts.

 

[blackwater]

Wait, what? It's barely noticeable in my 3.0L EcoDiesel. A naturally aspirated engine suffers losses from altitude at ~3x that of a turbocharged engine.

I’m not a software engineer and can barely log into this forum, but I believe I PM’d you the question. I know for a fact, you told me it is barely noticeable, but at the time I did not know you drove a diesel. You look

 

[AnnDee4444]

Government still doesn't dictate piston/cylinder count.


Here's a graph showing C02 Emissions (ppm?) vs. cylinder count, graphed over engine displacement (in liters?). While this graph is naturally going to have more pistons for larger engine displacement, you can (barely) notice there's different colored dots mixed in on many lines. This indicates similar emissions with different cylinder counts. In fact, the 6-liter line appears to get better emissions with more cylinders.

From https://rpubs.com/zhanayla/1056764

 

[blackwater]

So government dictates emissions, not pistons.


Smelling the roses... emissions... the irony 🤌

Splain it to me Lucy.

 

[Pig-Pen]

So it's too light for the torque

Wrangler oem clutch holds up the 3.6 torque just fine!

 

[blackwater]

Government still doesn't dictate piston/cylinder count.


Here's a graph showing C02 Emissions (ppm?) vs. cylinder count, graphed over engine displacement (in liters?). While this graph is naturally going to have more pistons for larger engine displacement, you can (barely) notice there's different colored dots mixed in on many lines. This indicates similar emissions with different cylinder counts. In fact, the 6-liter line appears to get better emissions with more cylinders.

From https://rpubs.com/zhanayla/1056764

Educate me, where are the 8 cylinders from yesteryear? Why are they almost gone?

 

[AnnDee4444]

Government still doesn't dictate piston/cylinder count.


Here's a graph showing C02 Emissions (ppm?) vs. cylinder count, graphed over engine displacement (in liters?). While this graph is naturally going to have more pistons for larger engine displacement, you can (barely) notice there's different colored dots mixed in on many lines. This indicates similar emissions with different cylinder counts. In fact, the 6-liter line appears to get better emissions with more cylinders.

From https://rpubs.com/zhanayla/1056764

More obvious colors.

 

[Ratbert]

I’m not a software engineer and can barely log into this forum, but I believe I PM’d you the question. I know for a fact, you told me it is barely noticeable, but at the time I did not know you drove a diesel. You look

Yes, and I quoted my response that says the opposite of "it is barely noticeable". In case you missed it: https://www.jlwranglerforums.com/forum/threads/v6-auto-officially-dead-for-2025.136510/post-2847904.

Sorry, but I have no idea how you inverted what I stated.

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