How did you decide on your engine?

[PetePetePete]

Two letters:

MT

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[AnnDee4444]

In your response to "No replacement for displacement",
Tesla engineering is able to better displace electrons to the motors via better battery tech and motor efficiency. So in a sense, even with electric vehicles, there is no replacement for displacement.

The internal combustion equivalent to electrons would be air & fuel, not cylinder displacement.

 

[viper88]

The M139 2.0 AMG Mercedes engine makes 416 hp and 369 lb-ft of torque. That is about the same as C6 Corvette's normally aspirated 6.0L LS2 V8.

No replacement for displacement no longer is valid. Has not been true for decades due to forced induction. You can add forced induction and electric assist now. Forced induction and /or electric assist has changed all the rules. Some brands have incorporated all of the technologies.

Then there is the modern automatic transmission. A transmission choice can make as much or more of difference than the engine choice. Drive train loss is minimized with some of the newer automatic transmissions. Some like the JLs ZF 8-Speed are incredibly efficient and shifts super fast. Personally I think the 8-speed automatic transformed the JL into a much better driving Wrangler than the old JK. It's probably responsible for much of the performance improvements of a JL over the JK.

I honestly would just go for as many test drives as possible in as many engine configurations as possible and pick the one that you enjoy driving most. Just make sure you are comparing "like" models with the same transmissions, gear ratios and tire sizes. I would go as far as asking the dealer to NOT tell you what you are driving. That way you do not have any bias.

 

[Heimkehr]

No replacement for displacement no longer is valid. Has not been true for decades due to forced induction. You can add forced induction and electric assist now. Forced induction and /or electric assist has changed all the rules. Some brands have incorporated all of the technologies.

Then there is the modern automatic transmission. A transmission choice can make as much or more of difference than the engine choice. Drive train loss is minimized with some of the newer automatic transmissions. Some like the JLs ZF 8-Speed are incredibly efficient and shifts super fast. Personally I think the 8-speed automatic transformed the JL into a much better driving Wrangler than the old JK. It's probably responsible for much of the performance improvements of a JL over the JK.

Just so.

My JLU's predecessor, a Honda Ridgeline, had a normally aspirated 3.5L V6. It was a competent if unexciting engine with 245 horsepower and variable valve timing.

The Jeep's 2.0T is almost half the size of the Honda's engine, and boasts 25 more horsepower. Give the GME four some right foot, and the Ridgeline wouldn't see the Wrangler for dust.

Fair credit must be shared with the equally superlative ZF 850RE. I'll sometimes use the AutoStick feature in a [vain] attempt to obtain a better mpg figure than what's evident on the dash display when I just leave it in D.

The ZF's transmission control unit wins every time.

 

[Killed by Death]

3.6L V6 24V VVT eTorque...That stupid little computer back-up battery for ESS just doesn't make any engineering sense. Coming from Germany cars I'm used to over engineering.

Anyone know which warranty eTorque & it's battery is covered under? Bumper to bumper or power train?

 

[viper88]

3.6L V6 24V VVT eTorque...That stupid little computer back-up battery for ESS just doesn't make any engineering sense. Coming from Germany cars I'm used to over engineering.

Anyone know which warranty eTorque & it's battery is covered under? Bumper to bumper or power train?

I am not sure about today but the early ESS system and battery was problematic. I had a 2.0T with eTorque and had no issues. I would feel 100% confidant buying a engine with eTorque again. I would also have no hesitation buying another 2.0T or 3.6.

The eTorque system and battery is covered under the much longer Federal Emissions Warranty. Every State has a little different requirements for the emission warranty also. The warranty would be based on which State you purchased your JL in.

I noticed you are in NC. Here is some info on NC. Looks like 8 years /80K miles in NC? That's "if" you purchase in NC. Double check though.

https://www.ncconsumer.org/news-art...anties-are-often-forgotten-or-overlooked.html

 

[Killed by Death]

I am not sure about today but the early ESS system and battery was problematic. I had a 2.0T with eTorque and had no issues. I would feel 100% confidant buying a engine with eTorque again. I would also have no hesitation buying another 2.0T or 3.6.

The eTorque system and battery is covered under the much longer Federal Emissions Warranty. Every State has a little different requirements for the emission warranty also. The warranty would be based on which State you purchased your JL in.

I noticed you are in NC. Here is some info on NC. Looks like 8 years /80K miles in NC? That's "if" you purchase in NC. Double check though.

https://www.ncconsumer.org/news-art...anties-are-often-forgotten-or-overlooked.html

Great info, Thanks Bro ?

 

[F2F]

My choice ?

 

[L1011]

The family CFO mandated I cannot buy a manual (which was my plan) so now I'm stuck trying to choose an engine. I'm glad this thread exists because this has thrown a monkey wrench in my plans.

 

[Brad41]

I am currently on vacation in AK, and we rented a jeep with the 2.0. Having the 3.6 for over 3 years now, I can say I made the right choice. The 2.0 just sounds anemic to me, and I don’t appreciate the turbo lag. I do like the better mpgs I’m getting though.

our rental:

 

[Col_Sanders]

I've owned a vehicle with the 3.6 and one of my work vehicles (ram 1500) has a 3.6. I don't like the power band of the 3.6. Flat ground it's fine but pull any grades and it's screaming 5000+rpm to maintain speed. The 2.0 doesn't.

Jeep seems to have it detuned in 4L which is disappointing, but some tuners claim to get rid of that problem.

392 wasn't available. Didn't want to deal with extra maintenance cost of the diesel.

 

[F2F]

A lot of people think the 2.0L has a lot of turbo lag, but it turns out it’s the crap throttle response. A pedal commander fixes that issue, but I’ve noticed the 3.6L seems to have better throttle response compared to the 2.0L.

 

[Steve JLUR]

I am currently on vacation in AK, and we rented a jeep with the 2.0. Having the 3.6 for over 3 years now, I can say I made the right choice. The 2.0 just sounds anemic to me, and I don’t appreciate the turbo lag. I do like the better mpgs I’m getting though.

our rental:

You also have 4.10’s in your Jeep, and 3.45’s in your rental.

 

[Brad41]

You also have 4.10’s in your Jeep, and 3.45’s in your rental.

yep, my 35’s don’t help mpgs either. Whatever makes folks happy, though.

 

[Steve JLUR]

yep, my 35’s don’t help mpgs either. Whatever makes folks happy, though.

Not knocking your choice, just pointing out the comparison is not like for like.

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