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Premium Member
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4,453 Posts
Discussion Starter #1
Any thoughts on the 3.6L vs 2.0L I4 Turbo? I'm not sold on this trend in the auto industry for smaller displacement and turbos, especially in a Jeep. Girlfriend is in the market for a 2020 JL and trying to steer her away from the I4 but open minded if I'm wrong in my assumptions.
 

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589 Fabrication
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3,548 Posts
I believe originally, on the JL, the I4 was Hybrid only, but might be available without now.

I really like the turbo 4 cylinder in my 2019 Ranger, but never had complaints with the 3.6l in my JK.
 

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Red Dragons!
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1,964 Posts
It’s a tough call. I have driven both, stock and lifted with bigger tires. The little 4 is pretty surprising. I have not seen issues with either at the dealership level. My wife went from a hemi Grand Cherokee to a turbo Cherokee and feels the overall performance is great. Best bet would be to drive them as much as the dealer will allow. I believe that the fuel economy is better with the turbo.
 

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Premium Member
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4,991 Posts
I’ve been really impressed with how the 3.6/8speed moves my 15 grand Cherokee around and that’s a nearly 5k lb suv. Plus I average low 20s mpg everywhere going 10 over. But I’ve heard the 2.0T is “faster” I would personally be concerned with maintenance.
 

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Premium Member
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4,453 Posts
Discussion Starter #8
It’s a tough call. I have driven both, stock and lifted with bigger tires. The little 4 is pretty surprising. I have not seen issues with either at the dealership level. My wife went from a hemi Grand Cherokee to a turbo Cherokee and feels the overall performance is great. Best bet would be to drive them as much as the dealer will allow. I believe that the fuel economy is better with the turbo.
Thanks for the input :thumb:

I’ve heard the 2.0T is “faster” I would personally be concerned with maintenance.
That's one of my main concerns...they say turbo and electric motor and all I hear is $$$$$$ repair costs down the road.
 

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Yooper In Training
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7,057 Posts
I’ve been really impressed with how the 3.6/8speed moves my 15 grand Cherokee around and that’s a nearly 5k lb suv. Plus I average low 20s mpg everywhere going 10 over. But I’ve heard the 2.0T is “faster” I would personally be concerned with maintenance.
Exactly. I've spent a lot of time in JLs and JTs, mostly lifted, all with the 3.6L. The 3.6/8spd combo is a fantastic powertrain combo for a midsize and is tough to beat. I've heard the turbo 4 is impressive as hell and delivers better acceleration and MPG stock. If you plan to lift it with bigger tires you'll probably see a much larger drop than you would with the V6 though because it'll essentially live in boost at that point. It's also a complexity nightmare and maintenance and reliability would scare me longterm. Personally I'd be holding out for the Ecodiesel for the power and MPG. Probably won't have the fun factor of the 3.6 but it'll be a workhorse in comparison.
 

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73 Posts
That's not true. Traditionally the Diesel motors have been reserved for the overseas market. However, Jeep has finally released a Diesel, (not sure if it's a 2.2L or a 3L) for the JL. It's been delayed a few times, but dealerships started taking orders last month. I think the JT is going to follow suit in the summer, but my local dealer guy wasn't sure when I was talking to him.

It took a while for Jeep to acknowledge the demand for a Truck, and they finally pulled it off. Now they offer a stateside Diesel Option. Hopefully they will continue raising the bar and finally pop a V8 between the fenders one day.
 

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Yooper In Training
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7,057 Posts
That's not true. Traditionally the Diesel motors have been reserved for the overseas market. However, Jeep has finally released a Diesel, (not sure if it's a 2.2L or a 3L) for the JL. It's been delayed a few times, but dealerships started taking orders last month. I think the JT is going to follow suit in the summer, but my local dealer guy wasn't sure when I was talking to him.

It took a while for Jeep to acknowledge the demand for a Truck, and they finally pulled it off. Now they offer a stateside Diesel Option. Hopefully they will continue raising the bar and finally pop a V8 between the fenders one day.
Correct, diesel is in process very shortly. It's an updated version of the 3.0L that's been in Ram 1500 for years, hopefully with the reliability issues worked out. Still a complexity nightmare compared to anything from 15 years ago, but should be a lot better at everything except unloaded acceleration than the turbo 4.

Word is that a V8 was widely debated but keeps getting axed. I don't think they'd ever pass crash testing with it, so that's likely the biggest factor. Fitting it and making it run right is one thing and the aftermarket is all over that already, but getting it up to snuff to pass the plethora of OEM requirements is another issue entirely.
 

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Gustafson
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9,102 Posts
Correct. the 3.0 diesel is available in the 2020 JL. Even though it's still a 3.0 liter, I've read that tons of parts have been beefed up and updated for more power and reliability. If I were in the market for a new Wrangler, this is the route I would go. I also think they're going to get close to 30mpg on the highway.

EDIT: Also, with 442lb/ft of torque, a lift and bigger tires wont bother this powertrain at all.
 

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LCG HIJKLMNOP
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7,815 Posts
Correct. the 3.0 diesel is available in the 2020 JL. Even though it's still a 3.0 liter, I've read that tons of parts have been beefed up and updated for more power and reliability. If I were in the market for a new Wrangler, this is the route I would go. I also think they're going to get close to 30mpg on the highway.

EDIT: Also, with 442lb/ft of torque, a lift and bigger tires wont bother this powertrain at all.
Basically everything people have been requesting for years. More tq at lower rpm..........
 
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