2012 jeep wrangler six speed manual

Discussion in 'Shiny Things' started by hayduke357, Sep 30, 2012.

  1. spezjag

    spezjag Long timer

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    I suspect you already know this, but with a Jeep, the numbers do not tell the whole story. The I-6 makes 70% of its peak torque at idle. Sitting in traffic, you can creep forward in second gear without touching the gas. So the 3.8 making "more" torque is misleading.

    My '05 Rubicon is a very flexible vehicle - from inner city DC traffic to very rural California living, it has been fantastic. I came close to trading it on a '12 4-door Rubicon, but luckily the dealer tried to severely low-ball me on the trade, and I could look him in the eye and say "not gonna happen" knowing I already had a Jeep I loved.
    #21
  2. Bueller

    Bueller Cashin?

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    Not true. Nothing wrong with the I6, and certainly nothing wrong with a TJ. But this should put that widely believed misnomer to bed:

    [​IMG]

    The big difference between the "feel" of the I-6 4.0 and the V-6 3.8 is the V6's electronic throttle, which makes it feel a bit more sluggish because the throttle is more linear than the I-6. If I were to have any complaint about the V-6 it would be that it has a bit too much flywheel effect for my taste for every day driving. But it wasn't quite built for that, was it? That same flywheel effect has been wonderful out here this week in all of the rock crawling. In combination with the 4:1 transfer case and 6-speed transmission it provides fantastic engine braking and has been able to idle up almost everything in 2nd or 3rd gear. I spent a lot of time when I first got out here going down to first for climbing shelves or onto big fins until I realized I just didn't have to.

    Do I think the 3.8 is a great engine? Not really. It's had more than its share of oil consumption issues over the years and a few other glitches. But it is the last of the "easy to work on" generation of engines (pushrods, cam in block, etc.). I've considered trading my '09 on a '12 with the new engine several times, but at least for the time being am glad I kept the '09 with the 3.8. The '12's have gotten a lot of bad press with cylinder head issues and other items. I'm confident they'll be great when the bugs are worked out, but Chrysler has barely crept out of the bailout/repurchase days. My belief is the '12 Wranglers were developed during the time when Chrysler was absolutely cash crunched, and that may have had an effect on the build quality by squeezing suppliers and cutting manufacturing costs wherever possible. I think the '13's and even the '14's will continue to get better under new ownership, and eventually I may pull the trigger. My '09 hasn't been perfect, but I believe (or at least hope) I have the bugs worked out of it at this point. I'll just keep it and drive the wheels off of it until said time I think it's good to take the leap of faith (come on diesel!), and much like putting a few years between one's self and any addiction I find I don't miss the grand ol' I-6 nearly as much as I thought I would :lol3
    #22
  3. hayduke357

    hayduke357 hayduke357

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    Went with a 2013 four door Auto.
    #23
  4. Bueller

    Bueller Cashin?

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    Enjoy!
    #24
  5. maydaymike

    maydaymike Fearless Commuter

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    I bought mine last weekend. 2012 w/3.6, 6 speed, 3.73 gears. Today, the mail jeep wheels were replaced with a leveling kit and 33's.

    [​IMG]

    [​IMG]
    #25
  6. longtallsally

    longtallsally Yeah I'm a chick

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    Well, you already go it, so it's a foregone conclusion, but I'll throw $.02 in. I had a YJ for 14 years. Loved it. When the JK came out, we drove a Rubicon one with the 6 speed. Plenty nice, but too much cash for too little power, and the plasticy interior. I just couldn't justify $35k for axles, lockers, and T case surrounded by mediocrity.

    Fast forward to last year and with baby here and the like, we needed a new family machine for re-entry to the States from Euroworthless. After a slew of research I ordered only my second ever new car to the exact spec we wanted. Getting to the point, we ordered the 6 speed (on principle in my book).

    11k miles and nothing but smiles.

    Wanna take the dirt bike?

    [​IMG]

    No problem.

    Wanna tow a camper?

    [​IMG]

    Doesn't break a sweat.

    Wanna go off road? And I don't mean mamby pamby off road, I mean the machine's namesake...

    [​IMG]

    Just a couple dings here and there, air up and drive 70-75 back in AC comfort listening to satellite radio.

    I'm 6'7" and I can fit in the seat behind me with the driver's seat in my position. Our 100+lb Rhodesian Ridgeback is swimming in space in the back. We've taken a passenger, the dog, the baby, my wife and I and been perfectly comfy driving all day.

    The craziest part of it all? The fuel economy. Before the very mild lift, armor, winch and such and going up and over Sonora Pass I got 23 mpg. In town I can still get 19 (with the ~300lbs of armor and winch) if I drive like a grandpa and 18 or just under if I'm more interested in keeping up with traffic. Generally on the freeway at 70 mph we get 20+ mpg.

    The break in drive was 3100 miles cross country with 400 being off road. Now a few months later, we did one of the toughest trails in the country with stock tires, and a very mild lift. I can't say enough nice things about it.

    So again, back to the tranny, I love it. I skip gears, coast, or sometimes give an Italian tune up. Aside from the throw being about as long as a stroke from an Egyptian boat of Jesus' era, it's just fine.
    #26
  7. Bueller

    Bueller Cashin?

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    Just got home a few minutes ago from our Moab trip. 4500 + miles in a little less than two weeks beating my 09 Rubicon to death on slickrock, lots of touring through Utah and Arizona, and it performed flawlessly the entire time. Managed a high of 23 mpg at higher altitudes with the cruise locked at 65 mph, around 20 mpg otherwise.

    When I'm done with this rubicon my next vehicle will be a rubicon. That'll be wrangler #6. Hoping for a stateside diesel in the next couple of years.
    #27
  8. debueller

    debueller Has a thing 4Fungirl

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  9. NSpooner

    NSpooner Adventurer

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    I've loved the newer 4 door wranglers but the prices on them just seems insane. You would also think a baby diesel motor would be the ticket for these to help with mileage and torque.
    #29
  10. SR1

    SR1 Back in S. Korea

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    Well, I guess there's not much more for you to say...I was gonna as your thoughts, ha ha!

    I just ordered a 2013 Sahara Unlimited with the 3.73, limited slip, hard top, max tow, saddle leather. I have a newborn and that's my first thought (comfort, protection, ease of use for mom and I).

    I nearly bought a 2012, but it had the "bad" head S/N so I opted to wait for a 2013 to be delivered here in Korea. As long as my family can put up with my Korea-dinky-car for 4 months, we'll be in the Unlimited in say March. I feel pretty good about this vehicle selection.
    #30
  11. JamesG

    JamesG Rabid Poster

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    No diesel? GTFO
    #31
  12. SR1

    SR1 Back in S. Korea

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    Is that directed at me?
    #32
  13. longtallsally

    longtallsally Yeah I'm a chick

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    Even with the rear facing baby seat right behind her, my 6' wife has no problems in the passenger seat in the front.

    So how were you able to verify your VIN against the bad batch?

    Also, don't count on the wait being that long. We were told 4 months too, and it ended up bring ready in just over a month- to the degree that we were still in Germany and I had to have it delivered to my parent's house.

    If you aren't coming back to the US, I also might wonder why you wouldn't get the diesel, although I've not heard the best of things about the Fiat diesel.
    #33
  14. Venteuri

    Venteuri I don't give a shit

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    You probably meant ...... TDI


    It's the clique!
    #34
  15. SR1

    SR1 Back in S. Korea

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    Based on the chatter on the big Wrangler forum (forgot the name) there are three batches of heads, and the 2013's they're building now all have the "C" head so I "should" be in the clear.

    The diesel isn't available when ordering an ENCS vehicle. All US spec.

    Is that a WR250R on the back of your JK? How does it handle that weight back there?
    #35
  16. NOTCH 8

    NOTCH 8 Been here awhile

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    2012 Jeep Wrangler Unlimited Rubicon 6 speed owner here.

    17k, and not one single problem.

    I will never sell it, unless Fiat blesses us with a diesel.
    #36
  17. longtallsally

    longtallsally Yeah I'm a chick

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    Ah, got a link or are you going to make me search... :ear

    Yeah, that's how we ordered ours as well out of Stuttgart, so it wouldn't be an option.

    And yes, that's a WR on the back. With the stock springs I did notice it there, but that was more due to using a cheeseball Harbor Freight carrier that sways a bit. No difference in power or economy with it there, though. I'm now on linear rate springs that are a bit taller but still on stock tires and though I've not had the bike on there, I suspect it will be even less noticeable.

    As for stock springs, I gotta say I must have got a good set. I never had the rake most people have out of the box and it sat dead level from day one. Truth be told, I would have left it indefinitely at the stock height, but I was concerned with adding the winch, it would dip the nose too much when doing the Rubicon trail itself. So now it sits jut a touch taller while still on the stock tires. I've not really impacted my fuel economy and can still get away with this type of action:

    [​IMG]

    [​IMG]
    #37
  18. SR1

    SR1 Back in S. Korea

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    This is the place I'm talking about: http://www.wranglerforum.com/f33/update-on-ticking-pentastar-new-head-137608-114.html

    That page of that thread is a good place to start. You'll see on the last page that some guys are telling me "don't worry about it until it happens" but put yourself in Korea, and you'll hedge every bet you can. Thus, I went with a to-be-built 2013 rather than something that's already built. Based on what's being reported now, all the JK's are coming out with AC heads now, so (knock wood) I should be in the clear. I realize I'm extrapolating data, but I always have the option of refusing delivery on the last day, if it comes with old heads.
    #38
  19. NOTCH 8

    NOTCH 8 Been here awhile

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    I personally find it hilarious how out of hand people make the "head problem".

    In the grand scheme of how many Pentastars there are, the amount with a head problem is very small.
    One issue I've always had with forums in general...you always hear the bad over the good.
    No one starts a thread with, "Look at my engine that doesn't tick!!"

    Furthermore, there is a known fix, and it's not a difficult one.
    A competent mechanic can replace one of these heads in less than 4 hours.

    Furtherfurthermore, every vehicle that has the possibility of a bad head has a 5yr, 100k mile warranty on said part.

    If it's going to be a problem, it'll sure as hell be one long before you're out of warranty.

    /End rant.

    Jeep picture time!

    [​IMG]

    Small one in the middle...
    [​IMG]
    #39
  20. SR1

    SR1 Back in S. Korea

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    I'm not going to get into an argument. Nor do I speak for everyone who buys a Jeep. If I lived in the US, I would agree with you. Put yourself in my position and you might feel differently. I would not be surprised at all to show up to a Jeep dealer here (of which there are few - actually 6 likely owned by the same guy) with a ticking head, and them say "there's no problem, you go away." If they say no what am I to do? I can't just go to another dealer here, and they know it. I'm just protecting myself, taking an extra precaution.
    #40