Mods please delete

[Kyanche]

Oh come on. Haven't you read the endless threads where people swear the drop in power at altitude isn't noticeable in their naturally aspirated Jeeps?

I live at sea level and consider the 3.6 jeep a gutless wonder lol

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[Kyanche]

I have had 3 Pentastars. One had issues with the oil cooler (JK) (replaced 2 under warranty) and it went 140K before it decided to lose coil packs when we ordered our JL. Wheeled the hell out of that JK. I had another go 90K and the upper oil pan leaked like a sieve (warranty) before my daughter's accident when it went up in flames. The other has been going strong for 50K with no issues. I have two friends (Ram Truck and Pacifica) who both blew head gaskets in there Pentastars

The JK 3.6 was the Pentastar!

The JL 3.6 is the Pentastar UpGrade!

AFAIK they were engineered by different people and built in different factories. The ram trucks probably have the upgrade version. They are not interchangeable - I don't think any dodge/chrysler/jeep vehicle moved from one engine to the other without switching platforms. (eg, the Charger/300/Challenger never got the PUG engine). The Grand Cherokee got it when they switched from wk2 to wl, I think.

 

[Deleted User 38384]

The Order Guide previewed this change, but this morning’s official announcement confirms that you will no longer be able to get a V6 with an automatic transmission.


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Probably not a popular opinion, but let's be honest here, the 3.6L is severely underpowered compared to it's smaller turbocharged brother.

 

[2nd 392]

Probably not a popular opinion, but let's be honest here, the 3.6L is severely underpowered compared to it's smaller turbocharged brother.

True, but who else still has NA 6’s ? Isn’t Toyota, another hold out, dropping them ? Does anyone else have 4, and 6 cyl options with comparable power ? Heck, what other Stella vehicles use it for 25’s ? It can’t be many. I suspect the reason it’s being used on Wranglers is it’s the only engine offered for the manual.

but they’ll be used for the REPB’s

 

[Roky]

I really don’t give two shits which engine is better… I’ve worked on both…… I just wish they would’ve put the 3.6 that’s in my ram work truck in my jeep…. ….. both 2018 3.6 pen w/auto…. The truck is 305/269 and Jeep is 285/260 …… The truck gets 25-27 mpg, while the Jeep gets 17-19….. ( tho this is probably due more to the fact that one has aero of a stock car and one has aero of a bread truck, ) and just to fuk with me a little more, one holds 6 quarts and one holds 5………….rant over, please continue with your pointl….. uh, ridicu…… uh, engine debate…..

 

[Odyssey USA]

The power difference isn’t THAT great. Let’s not get crazy here. lol Our eTorque 3.6 is super close and some days it’s even with the 2.0 depending on ambient temps, barometric pressure. Again, we owned both eTorques at the same time for 2.5 years.

 

[yokramer]

Not having to get dirty in the mud slinging when you know you already have the worst engine of the bunch is nice I guess.

 

[Remorseless]

Many, many failures. Small, shitty turbos. Tons of dust bypass. I should know.

Funny how the top of the block nowdays is a NA 2.0...

I raced this for a few years. If I was buying a new UTV right now, it would be a ProR NA2.0.

UTV manufacturers had a handshake agreement that 1000cc was the max size engine. The only way to pull more power and to one up each other was to put turbos. Turbos weren't used for reliability.

Polaris broke that deal. And they are ahead. Go and put a turbo on a 2.0 right now, tons of failures.

Rzr forums don't really bear that out, seems like they're just as reliable as their NA counterparts.

 

[NWJeepr]

Not having to get dirty in the mud slinging when you know you already have the worst engine of the bunch is nice I guess.

It takes serious masochism to get excited about an Italian diesel…for real.

 

[Remorseless]

I thought we were talking about Jeeps, not sand lice...

Those sand lice are about the only comparable vehicles that see as much dirt as Jeeps do. Toyotas and their fire roads don't really count.

 

[NWJeepr]

Those sand lice are about the only comparable vehicles that see as much dirt as Jeeps do. Toyotas and their fire roads don't really count.

I think he left in a snotty huff before I could explain a Polaris 2.0 is just slightly different than the GME 2.0 Hurricane.

 

[Remorseless]

The 2.0 is significantly more complex to the 2.0. Direct injection, turbo charged, with an additional cooling loop. Just taking the valve cover off takes longer than taking *both* off on the 3.6L. And when you go to put it back together, you better pray that high pressure fuel line doesn't leak. That's assuming you even managed to houdini the pump side back on properly. Go and try to replace a throttle body on one. It isn't fun.

The 2.0 sucks to work on. It has just as many build quality concerns as the 3.6L, they're equally reliable as far as I'm concerned. The only difference is I can rip apart a 3.6 in a fraction of the time a 2.0 takes

Sounds like a familiarity issue. It's less than half the bolts and roughly the same connectors. Plus no dealing with the ridiculous intake manifold on the driver's side of the 3.6. But I guess familiarity is what you get when you're having to tear apart as many 3.6s as have needed to be torn apart over the years.

Though I do agree that I view them as equally reliable. For the issues the 3.6 has that are inherent to the design, it's really lottery draw to see if you "win" or not. The majority of the 3.6s produced will not have issues... much like the majority of 2.0s.

 

[Remorseless]

Just the warped head from the 3 separate coolant leaks it left the factory with.

Oh come on now, I know you've been all over those head (gasket) issue threads. You know as well as I do that the 3.6 will roll out with as many seeping radiators and reservoirs and will warp those heads in a heartbeat.

But yeah, Jeep failing to bolt down and Loctite the Y inlet on the 2.0 was gloriously dumb. Wonder how many engines a little blue Loctite cost them. Though I don't consider coolant leaks from bad installation an inherent design issue with either the 3.6 or the 2.0.

 

[Remorseless]

Yeah they do got some nice waiting rooms to stand in while you watch your 3.0 gets its next HPFP

 

[Remorseless]

It isn't directly regulated like that but more implied. Under low load cruising scenarios the engine is rather efficient. Most of the EPA testing is done during cruise or at a stop. By creating a small turbo 4 cylinder you can effectively cheat that cruising emission requirement even when real world scenarios create a much different picture. The second you are required to go into boost the engine's fuel economy plummets. My 21 4xe got ~13 mpg going cross country, for example. It's also why stop start exits; the fuel it saves is almost inconsequential compared to significantly higher maintenance cost of reduced battery life. A good portion of the EPA city test is spent at idle, so creating an automated shut off system allowed them to effectively cheat that portion of the test.

It's the same reason vehicles are becoming bigger. The larger a vehicle is the less stringent MPG requirements they have to meet.

The issue with the 4xe on the highway though is it's working towards 6,000 lb. Same issue with the JT and 3.6 - I see like 13MPG when cruising between 70 and 75 in my stock JT with 3.6 just because it's heavy and hills exist. There's not enough power in either the 2.0 or 3.6 to deliver decent economy for a 5k lb + vehicle at 70+ MPH, even for someone like me who sticks to the speed limit or just up to 5 over.

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