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Author Topic: Does a manual transmission save more gas? Back to Topics
binhboy

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Message Posted: Oct 14, 2013 7:34:29 PM

I was wondering if a manual transmission saves more gas than an automatic. Or does it just depend on the driver ?
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badbobKY
All-Star Author Lexington

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Message Posted: Oct 30, 2014 9:23:02 AM

yes
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HideMKE
Champion Author Milwaukee

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Message Posted: Oct 30, 2014 9:11:35 AM

yes if you know your car...
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LibertyGuardian
Sophomore Author Arizona

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Message Posted: Oct 30, 2014 8:13:23 AM

Myth...Today's modern technology in automatic transmissions and monitoring equipment on board are generally superior to manual shifting in nearly every aspect.
Drivers using manual transmissions tend to view themselves as a "professional" road racing hero and more often than not abuses the vehicle's best economic efficiency by shifting late, over revving the engine and exceeding the best shift points for maximizing fuel economy.
A manual trany in the hands of the average driver today, seems to immediately turn just about every one of them into a Dale Jr, Tony Stewart or Jimmie Johnson
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Jackson126
All-Star Author Virginia

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Message Posted: Oct 30, 2014 7:28:09 AM

no
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ballotmaster
Champion Author Seattle

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Message Posted: Oct 27, 2014 1:05:23 AM

No
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weddy11
Champion Author Phoenix

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Message Posted: Oct 26, 2014 9:54:01 AM

Not on the newer cars.
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krazkar
Champion Author Calgary

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Message Posted: Oct 25, 2014 10:34:35 PM

Back in the day they did
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GLM4205
Champion Author Toledo

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Message Posted: Oct 25, 2014 5:43:04 PM

Yes
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twt
Champion Author Virginia Beach

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Message Posted: Oct 25, 2014 5:09:04 AM

Manual shift, gives better mileage.
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Mikeyy1960
Sophomore Author Cape Coral

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Message Posted: Oct 24, 2014 7:54:36 PM

depend on driver and your commute...
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fumanaz
Sophomore Author Arizona

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Message Posted: Jan 20, 2014 9:02:24 PM

No
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lyanMI
Champion Author Detroit

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Message Posted: Jan 20, 2014 8:06:09 PM

Automatics are becoming more fuel efficient these days
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WEDDY
Champion Author Phoenix

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Message Posted: Jan 19, 2014 11:00:52 AM

Depends on the car and of course the driver. Some cars show better EPA with manual, and others show better with automatic.
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Boyrr
Champion Author Allentown

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Message Posted: Jan 19, 2014 10:04:58 AM

Not with the current machines
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gvan
Champion Author Chicago

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Message Posted: Jan 18, 2014 12:47:13 PM

"Coasting in neutral can waste gas because the ECM sends gas to the engine
to maintain idle but shuts down fuel during engine braking action."

And to back that up:

January 15, 2014
Shifting into neutral and coasting does not save gas. When the vehicle is coasting with the transmission in gear, the computers turn off the fuel injectors until the engine slows to near idle speed. The engine is still turning over but using no gasoline. “Turning off the fuel injectors means the drivetrain is turning the engine rather than the engine turning the drivetrain,” says RockAuto.com’s Taylor. “This actually helps slow the vehicle and slightly reduces brake pad wear when coming to a stop.”
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traffic cop
Champion Author Boston

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Message Posted: Jan 14, 2014 1:34:47 PM

Times have changed. A computerized six-speed automatic is going to outperform a manual four- or five- speed manual box. If you're considering a purchase with a manual, consider the reduced market you'll have for re-sale when you're ready to buy again.

Occasionally there are those "stupid crook stories," where some jerk tries to steal or hijack a car, only to be thwarted by a manual box he doesn't know how to operate.
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magpie2013
Champion Author Milwaukee

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Message Posted: Jan 12, 2014 6:26:09 PM

It did way back when, but now things have changed including the gas, so no I don't believe so.
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rick_evans
Champion Author Boston

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Message Posted: Jan 8, 2014 7:39:52 AM

Sal30 --"With an auto, it hurts the car to shift to neutral during motion, but with a manual, it's safe for the car. "

1. Coasting in neutral is less safe for car control especially when on a
downgrade because.

2. Coasting in neutral can waste gas because the ECM sends gas to the engine
to maintain idle but shuts down fuel during engine braking action.
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MertieMan
Champion Author Lexington

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Message Posted: Jan 8, 2014 5:03:23 AM

It most definitely depends on the driver and his technique in using the manual transmission. You cannot skip gears and effectively get good gas mileage.
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Karisholman
Veteran Author Nevada

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Message Posted: Jan 8, 2014 2:36:35 AM

I think it definitely depends on the driver.
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GrumpyCat
Champion Author Alabama

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Message Posted: Jan 7, 2014 9:08:29 PM

This is as goofy of a question as to whether synthetic motor oil is magic.

Most any manual transmission will yield better MPG than a caveman stupid classical 3-speed Detroit-based slushbox. But thats not found on modern cars. Even then a big V8 often got better MPG than the same vehicle/engine with a manual. But what many don't tell you is the manual was geared for acceleration not economy.

The best answer to your question is to consult the EPA ratings.

As for synthetic vs refined, once again consult performance tests, not marking nomenclature.
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dgsteven
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Message Posted: Jan 7, 2014 7:30:10 AM

yes
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hoopitup2000
Champion Author Virginia

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Message Posted: Jan 7, 2014 7:23:27 AM

"Not that much difference these days mechanics tell me."

I would be wary of these so called "mechanics" when they tell you your "muffler bearings" need to be replaced.

You know we are in trouble when mechanics start to believe the EPA.
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cv
Champion Author Raleigh

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Message Posted: Jan 7, 2014 6:25:07 AM

Not that much difference these days mechanics tell me.
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dontuknowOH
Champion Author Ohio

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Message Posted: Jan 4, 2014 4:03:11 AM

My bet is on the skilled driver combined with a familiar std. tranny vehicle with his mind set to save fuel as a priority driving episode. The average driver with average skills/driving habits should do better with the automatic when both vehicles are otherwise equal in nature.

Convenience comes with an extra mechanical design cost(more complex apparatus) = nice & lazy to an extent/degree = affordable/satisfied! Smile!
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SmoknFord
Champion Author British Columbia

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Message Posted: Jan 4, 2014 3:36:18 AM

Depends on how you drive.
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ranger1169
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Message Posted: Jan 4, 2014 2:56:46 AM

yes
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BartandLisa
Champion Author Newfoundland

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Message Posted: Dec 29, 2013 5:56:40 PM

As several posters have noted, a manual has the potential to be more fuel efficient if driven properly. I have driven an automatic truck identical to my manual, except for 1 model year, and have found mine to get 2 mpg better overall. Same axle ratio, wheel size, etc.
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GMGuy65
Rookie Author Kansas

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Message Posted: Dec 28, 2013 9:04:47 PM

with all ratios and # of gears equal, the manual will allways get better mpg. Why? simple. the manual is not pumping oil to pressure to hydraulically engage clutchpacks. or in the case of a few pressure lubed manuals, its at a low PSI, and just for lube.

a good driver can also maximize MPG better with a manual.
hill decent and acent control
tow haul mode
traction control
torque management
engine braking
etc.
all of the above options are standard equipment on any manual transmission vehicle ever built, its just they have to be uploaded in the drivers brain before utilization. :)With a good driver, everything I listed above can be performed with a manual.
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hoopitup2000
Champion Author Virginia

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Message Posted: Dec 28, 2013 12:29:20 PM

"I disagree with the previous post"

So do I. Unfortunately this is what happens when people think the EPA can do anything right.
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OilerFan
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Message Posted: Dec 28, 2013 11:47:22 AM

I disagree with the previous post. A human being, operating a manual transmission is always going to out perform even the newest of automatic transmissions. A human being can see the road ahead and make judgements ahead of time. A human being can anticipate what will happen next, and therefore, a human being operating a manual transmission will get better gas mileage (unless that human being isn't smart enough to operate a manual transmission and make those judgements). In which case, they probably have poor driving habits and wont get as good mileage as they could, even with the newer transmissions.
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PaylessKY
Champion Author Kentucky

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Message Posted: Dec 28, 2013 10:19:15 AM

Not with todays transmissions.
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borsht
Champion Author Oakland

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Message Posted: Dec 28, 2013 1:22:25 AM

modern manuel transmissions and automatic transimission use automatic tranmission fluid. Low viscoity oil. There is a lot more parts turning in an automatic trasmission so it will not be as efficent as an automatic.
That being said. A poor driver can get poor gas mileage with either.
A good driver will get better gas mileage with a manuel.

If one uses the mpg meter. and keeps it from dropping into the small digits, he again will do well with either type of transmission.

But since the losses as less in a manual, an automatic at its best will be less than a manual.
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PassmyGas
All-Star Author North Carolina

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Message Posted: Dec 28, 2013 12:37:00 AM

No, but the driver or operator can.
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PassmyGas
All-Star Author North Carolina

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Message Posted: Dec 27, 2013 11:50:27 AM

Yes!! You need to know how to drive and what your engine specs are.
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hoopitup2000
Champion Author Virginia

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Message Posted: Dec 27, 2013 8:11:30 AM

Driven correctly, the manual is more often than not the most efficient. Automatic technology is certainly improving, but still can't beat the human brain at determining the best shift points.

Brake life can also be greatly extended with a manual. I'm planning on getting at least 125,000-150,000 miles out of my front brakes.
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eyegotgas2
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Message Posted: Dec 27, 2013 3:41:33 AM

I read an article here a while ago that explained it used to be so but with modern technology it is no longer the case.
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poetdog73
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Message Posted: Dec 27, 2013 12:13:56 AM

yes it does!
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WES03
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Message Posted: Dec 26, 2013 8:19:29 PM

It does on my '09 Focus.
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ricebike
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Message Posted: Dec 26, 2013 6:56:46 PM

i have a 1989 nissan 240sx, it's fun to drive but i'm only getting about 27 mpg
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ace12012
Champion Author Phoenix

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Message Posted: Dec 26, 2013 2:57:55 PM

from what I have read, this is not as true as it used to be.
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Gabilondo
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Message Posted: Dec 26, 2013 2:46:18 PM

I believe that it does.
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Vin63
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Message Posted: Dec 26, 2013 9:49:50 AM

It depends on the driver.
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BartandLisa
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Message Posted: Dec 25, 2013 12:54:32 PM

Yes, if done properly, not revved all the time
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FeinDenz
Rookie Author Ottawa

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Message Posted: Nov 29, 2013 7:01:00 AM

Yes, especially if you drive right shoe-less (it is NOT illegal) as you shift gears with more frequent pedals-touch than with automatic transmissions.
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cv
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Message Posted: Nov 29, 2013 6:57:05 AM

If one drives it properly, yes for most cars.
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ny10
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Message Posted: Nov 29, 2013 12:51:17 AM

definitely. manual is always better option than automatic if you can handle it.
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Sal30
Rookie Author Philadelphia

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Message Posted: Nov 25, 2013 8:28:19 AM

Depends on the car. Passat TDI gets 43 mpg with manual and 40 with DSG.
Passat 1.8t gets 34 with Tiptronic and 35 with Manual.
Mazda 6 is the opposite, 37 mpg with manual and 38 with Auto.
I do think that you can still do better with a manual because you can shift to neutral downhill and coasting to red lights and stop signs. With an auto, it hurts the car to shift to neutral during motion, but with a manual, it's safe for the car.
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dgsteven
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Message Posted: Nov 24, 2013 3:43:09 AM

no
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Boyrr
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Message Posted: Nov 21, 2013 2:19:38 PM

not as much as a light foot
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