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Old 10-23-2011, 08:15 PM   #1
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advantages & disadvantages of auto vs manual

I have always been a fan of manual transmissions for 4x4s and sport cars.
However want to see if this is still the best way before ordering a JKRU.
Have liked manuals due to increased control going down mountains without riding brakes.
How well does the Hill Descent Control work compared to the control of a manual?
Always have thought the manual gave better control going over obstacles. The current autos have more control by doing things like taping the shifter. How does this control compare to a manual?
If the battery or starter is dead, can start a manual by rolling down a hill. To the best of my knowledge, this is not possible with an auto. Is this still correct?
There are also advantages to an auto. One can remote start it.
No shifting in traffic.
The torque converter might absorb some vibrations.
Auto costs much more.
What am I overlooking?
How do the current autos compare to manuals for a 4x4 used for both DD and off road?

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Old 10-23-2011, 08:33 PM   #2
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go to a dealer and test drive each one and see what you like.
I like my auto, could be geared a little shorter, but it gets the job done. first automatic I've owned. Manuals are good, but can be tricky off-road, the clutch tends to get quite hot...

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Old 10-23-2011, 08:38 PM   #3
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I test drove 7 jeeps , 3 of which were manuals. I liked the auto more but came to the realization the manual would suit me more for my driving and it's all subjective, really. I like how fast the auto is and how seemless it feels but it's just boring to drive. Don't get me wrong, it's a nice piece of machinery but after thinking it all through the manual won me over. I won't be doing extreme offroad where I would need an auto but the manual will handle all of what I need and its more fun to drive. Besides, not everyone in todays society can drive a stick as it's becoming a lost art!
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Old 10-23-2011, 08:47 PM   #4
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Get what you want and like.
I preferred manual.

This question has been asked and answered many times.

http://www.wranglerforum.com/f33/201...to-105835.html

http://www.wranglerforum.com/f33/man...ic-117279.html

http://www.wranglerforum.com/f33/man...on-106663.html

There are many, many, more.
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Old 10-23-2011, 08:59 PM   #5
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Some advantages you get with a manual:

Use engine-breaking - saves fuel because of the gas shut-off
Stay in higher gears and use WOT acceleration - saves gas where the auto unnecessarily downshifts
Coast by putting the manual in neutral
Hold the gear - the auto only lets you limit the upshifting
As long as the auto does not lock up the torque converter wastes energy
1 gear extra
Shift early where you anticipate certain situations, like downshift early when you want to overtake and don't wait for kick-down

Some automatic transmissions are quite amazing in the functions they offer and make many of my points above obsolete, but I am not sure about the Jeep auto.

I have never owned an auto car... but that does not mean that I could not imagine having one.
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Old 10-23-2011, 09:18 PM   #6
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My JK is a 2009 so I have the lifetime drivetrain warranty. For me and my auto JK everything is covered. If I would have got the 6sp wear items like clutches would not have been covered so I went with the auto but I was leaning toward and auto anyway so the warranty was iceing.
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Old 10-23-2011, 09:34 PM   #7
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Stick. More fun and more control. Put that donut and cell phone down and DRIVE!

For off roading, auto is arguably better. It all depends on how/where you'll be driving it most!
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Old 10-23-2011, 09:35 PM   #8
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Over 34 years of driving Jeeps I have had 3 speed, 4 speed and 5 speed manual transmissions. I am tired of rowing myself everywhere I go. The new 5 speed auto is for me.
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Old 10-23-2011, 09:50 PM   #9
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Originally Posted by tomthbomb View Post
Over 34 years of driving Jeeps I have had 3 speed, 4 speed and 5 speed manual transmissions. I am tired of rowing myself everywhere I go. The new 5 speed auto is for me.

I guess I would be going in the opposite direction. I've driven autos for the last 20 years, and I'm tired of the boredom. I started out with manuals and drove them for the first 10 years. However, my LJ is auto in the event I'm injured and can't drive my manual Scout II for some time. It would suck to have to take the bus because I can't drive either vehicle for a while!
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Old 10-23-2011, 10:27 PM   #10
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after years of manuals, I've come to prefer modern autos on the off road stuff. That where they really shine.

Haven't tried the 2012 yet....don't want my 08 to get jealous.
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Old 10-23-2011, 10:31 PM   #11
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For me, the manual is part of the lumbering, lorry-like Wrangler charm.

Levers, and knobs, and gadgets galore... ...and the top folds back!

Seriously, all part of the absolute fun that is the Wrangler- if you find it's type of driving and operation fun. I sure do!

(Although my plantar fasciitis is less than pleased with ye olde clutch).
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Old 10-24-2011, 12:03 AM   #12
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I've always owned manual cars and trucks as I found that I had more control over the speed of the vehicle and they were more fun to drive. I was dead set on getting a manual Jeep until I test drove one. I test drove the 12 JKU in Manual and found it to be a very awkward shifter. My left foot had to hang out beneath the shifter. When I went to press the clutch I had to lift up my leg and move my foot around the clutch. I also found that it catches very late. You get nothing until you're practically all the way off the clutch pedal.

Both me and the wife tried it and agreed that it was uncomfortable and that the auto was much nicer so that's what we got. We are both pretty short so it might shift better for taller folks.
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Old 10-24-2011, 12:26 AM   #13
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If you're a mountain biker, the auto is much easier to drive with a broken hip, fractured clavicle, etc. So long as you have a slickshift sitting around somewhere, a stick has an allure that puts the fun factor over the top.
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Old 10-24-2011, 12:29 AM   #14
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The #1 advantage of a manual transmission is the ability to "roll" start your vehicle. I drive an auto nowadays and carry an extra "jump" battery with me.
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Old 10-24-2011, 12:44 AM   #15
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Originally Posted by nvkid View Post
The #1 advantage of a manual transmission is the ability to "roll" start your vehicle. I drive an auto nowadays and carry an extra "jump" battery with me.

Then you have something wrong with:
A: Your Jeep
B: You

Why do you carry around an extra bat to start it? why not get it fixed???
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Old 10-24-2011, 01:08 AM   #16
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Quote:
Originally Posted by El Gringo View Post

Then you have something wrong with:
A: Your Jeep
B: You

Why do you carry around an extra bat to start it? why not get it fixed???
When you`re out in the middle of nowhere, batteries can fail. Think about it.
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Old 10-24-2011, 01:32 AM   #17
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One advantage is you don't have to worry about mud in your clutch on muddy trail.
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Old 10-24-2011, 08:52 AM   #18
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Quote:
Originally Posted by nvkid View Post
When you`re out in the middle of nowhere, batteries can fail. Think about it.
And when batteries fail, so do electric fuel injectors and computers. The ability to roll start and just run on the alternator's power worked fine with carburetors but not so much with modern electronics.
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Old 10-24-2011, 09:35 AM   #19
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And when batteries fail, so do electric fuel injectors and computers. The ability to roll start and just run on the alternator's power worked fine with carburetors but not so much with modern electronics.
Correct. Also, the catalytic converter can get ruined from the raw fuel when you try a push start. I would not count on push-starting a modern manual transmission vehicle; much better, more reliable and safer to carry a battery back-up.
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Old 10-24-2011, 09:42 AM   #20
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Along that same line-

If you aren't carrying a "Jump Start"/aircomp/12vdc outlet/radio/emercency signal/compass---UNIT

Carry a spare battery, in a container and be sure the battery will "SWAP" (replace)with your jeep battery-

Common sense

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Old 10-24-2011, 09:54 AM   #21
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Have not done serious off-roading with an auto.
How do the current autos excel off road?
Do not understand.
Also is mud in the clutch of a manual normally a problem? Find it hard to believe that Jeep engineers would overlook such a problem.
Also normally carry a backup battery. Have had too many things go wrong.
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Old 10-24-2011, 11:40 AM   #22
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So if you can`t "roll-start" a modern manual, why play with a long hard stick ?? Mabey "El Gringo" can explain this.
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Old 10-24-2011, 11:50 AM   #23
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Perhaps you have a different description for "Recovery Equiptment" ??


Quote:
Originally Posted by El Gringo View Post

Then you have something wrong with:
A: Your Jeep
B: You

Why do you carry around an extra bat to start it? why not get it fixed???
You can carry nothing and depend on someone else, or carry what you think is adequate for your safety and along with all my recovery gear, I carry an OPTIMA blue top for my inflateable fishing boat and as a jeep battery replacement--serves two functions-

I have an automatic tranny and have no desire for a manual tranny !!

SEE ? ain't this jeepin great ?

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Old 10-24-2011, 12:28 PM   #24
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Quote:
Originally Posted by JIMBOX
Perhaps you have a different description for "Recovery Equiptment" ??

You can carry nothing and depend on someone else, or carry what you think is adequate for your safety and along with all my recovery gear, I carry an OPTIMA blue top for my inflateable fishing boat and as a jeep battery replacement--serves two functions-

I have an automatic tranny and have no desire for a manual tranny !!

SEE ? ain't this jeepin great ?

JIMBO

And that's fine for your recovery gear, I don't think I need an extra battery. I have some basic survival stuff in my kit, jumper cables, rope, duct tape, knife, mess kit, matches, tow strap and probably some other stuff in there too. I don't wheel as often as I would like to but don't go alone. I don't air down and don't wheel at night so battery failure is unlikely.
On my Bronco, somehow my alternator belt came off and I finished wheeling and drove her home that day and then to the parts store to find out which belt i needed to get (which they didn't have), then to tractor supply for the belt. Then back home (~40 miles) to put it on. Never missed a beat.

Quote:
Originally Posted by nvkid
So if you can`t "roll-start" a modern manual, why play with a long hard stick ?? Mabey "El Gringo" can explain this.
Well "nvkid",
it is all a matter of preference or availability. I wanted a manual, but after test driving them I didn't like the 6 speed, too much shifting and the clutch was sloppy feeling to me.and my trade in was a 99 ranger 5spd with 200k+. The clutch pedal was a: deep; b: felt like it would never actually get to where the engage/disengage point was; c: felt to soft and too long/awkwardly positioned. The shift was very sloppy feeling and had a shorter throw than I was used to but I didn't like it. In whole, I did not like the manual for my needs even though I could have probably gotten used to these things. I don't really care much for my auto either, but it is tolerable with the new dealer pm reflash.

It all boils down to preference. If you like the manual then get the manual. I didn't, so I got an auto, plus it was the only 2010 that i could find, that I got in April of 11 for a steal.
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Old 10-24-2011, 12:40 PM   #25
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Old 10-24-2011, 01:03 PM   #26
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Get what you like...
The biggest advantage IMO is the extra $1000 in your pocket....and the .797 6th gear ratio.

With the 5 speed auto-stick, a lot of the advantages have been mitigated IMO....you can downshift whenever you want or not go above a certain gear if you so choose. With 5 gears and better ratios....I think it comes down to tradition and feel.
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Old 10-24-2011, 01:31 PM   #27
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Get what you like...
The biggest advantage IMO is the extra $1000 in your pocket....and the .797 6th gear ratio.

With the 5 speed auto-stick, a lot of the advantages have been mitigated IMO....you can downshift whenever you want or not go above a certain gear if you so choose. With 5 gears and better ratios....I think it comes down to tradition and feel.
So you use the stick cause it feels good ??
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Old 10-24-2011, 01:50 PM   #28
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And when batteries fail, so do electric fuel injectors and computers. The ability to roll start and just run on the alternator's power worked fine with carburetors but not so much with modern electronics.
x2, I first ran into this in high school. I had an 88 Mustang and left my lights on. We pushed it around the parking lot for probably ten minutes trying to bump start with my friends cavalier pushing. (no one had cables). I called my uncle from a pay phone (as I bought it from him) and asked what the heck am I doing wrong? He replied, "it has a fuel injected throttle body. Without any power to it, you won't get any gas".

So, in theory, no you can't bump start with a dead battery. But you could bump start if your starter/selenoid failed. As long as your battery still had some power.
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Old 10-24-2011, 02:02 PM   #29
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And when batteries fail, so do electric fuel injectors and computers. The ability to roll start and just run on the alternator's power worked fine with carburetors but not so much with modern electronics.
It takes a whole lot less power to run those things than it does to crank the engine and once it's running the alternator will hopefully be producing the power to keep them going. A battery that doesn't have enough juice to crank the engine can keep the engine running for hours once it's started.

Quote:
Originally Posted by BManz View Post
Correct. Also, the catalytic converter can get ruined from the raw fuel when you try a push start. I would not count on push-starting a modern manual transmission vehicle; much better, more reliable and safer to carry a battery back-up.
You are not going to ruin a catalytic converter by push starting a vehicle. You would be much more likely to ruin it by cranking it forever hoping it will start when the ingition system isn't working. There won't be any fuel in the engine until it starts spinning, just like when it is started normally, so this is not a valid concern. Even if there was raw fuel in the exhaust for a few seconds, that isn't going to cause any harm.
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Old 10-24-2011, 02:50 PM   #30
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x2, I first ran into this in high school. I had an 88 Mustang and left my lights on. We pushed it around the parking lot for probably ten minutes trying to bump start with my friends cavalier pushing. (no one had cables). I called my uncle from a pay phone (as I bought it from him) and asked what the heck am I doing wrong? He replied, "it has a fuel injected throttle body. Without any power to it, you won't get any gas".

So, in theory, no you can't bump start with a dead battery. But you could bump start if your starter/selenoid failed. As long as your battery still had some power.
I'm fairly certain that you can, if you are going down a hill. I did it in my bronco and in my ranger. Both were FI, both had left lights on. Both started up after about 1 second.

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