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Author Topic: Anyone shifting to neutral on downhill to save gas ? Back to Topics
Vibe03

Veteran Author
Toronto

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Message Posted: Jul 21, 2010 9:12:55 AM

When it is not steep downhill and you don't need to brake the car to slow it down, coasting down around 55 mph at idling gives the engine a rest also save gas. Just not sure if the vacuum and other stuff are operating at normal level
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dontuknowOH
Champion Author Ohio

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Message Posted: Aug 31, 2014 5:56:40 PM

The 5500 RPMs could result to leaving the cruise control on, or a very dry/worn go-pedal linkage system. That would need checked, some vehicles often need EMg. brake cables lubed, if driven in Winter Sloppy regions on a regular basis. Some find that those Park Brake cables can seize(hang-up)when least expected.

Driving with cruise on is risky during any slippery road conditions, slimy fallen leaves, mud slides, frost/ice/packed snow/wet grass debris on roadways all pose a problem with cruise on if sever amounts go unnoticed.

Your throttle return spring may need checked for wear/tension/binding if engine RPMs build to 5500 gravity doesn't change with the tides where I live anyway, Actually I did have a runaway throttle on a motorcycle once, a Skyrocket event! at that...."1968"
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dchawk81
Sophomore Author Pennsylvania

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Message Posted: Aug 31, 2014 12:09:31 PM

No because sometimes my RPMs will skyrocket. I don't know why but it doesn't always idle down to save gas, and there I am dangerously popping the tranny back into gear with the engine at 5500 RPM.
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redfish67
Champion Author Dallas

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Message Posted: Aug 31, 2014 12:08:28 PM

no
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b899
Champion Author Connecticut

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Message Posted: Aug 31, 2014 10:10:36 AM

no
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PaylessKY
Champion Author Kentucky

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Message Posted: Aug 29, 2014 10:09:08 AM

No
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b899
Champion Author Connecticut

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Message Posted: Aug 29, 2014 9:06:05 AM

no
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WEDDY
Champion Author Phoenix

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Message Posted: Aug 27, 2014 9:43:07 AM

No
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b899
Champion Author Connecticut

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Message Posted: Aug 27, 2014 8:50:37 AM

no
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pt1KY
Champion Author Lexington

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Message Posted: Aug 26, 2014 8:34:31 PM

no
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PnnyPnchr
Champion Author Toronto

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Message Posted: Aug 26, 2014 12:00:06 PM

Not advisable with an automatic transmission.
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lyanMI
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Message Posted: Aug 26, 2014 11:25:58 AM

I did it recently.
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Awing1
All-Star Author Ontario

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Message Posted: Aug 26, 2014 11:10:08 AM

no
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b899
Champion Author Connecticut

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Message Posted: Aug 26, 2014 8:27:50 AM

no
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dassfg
Champion Author Fort Worth

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Message Posted: Aug 26, 2014 7:48:41 AM

No
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hoopitup2000
Champion Author Virginia

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Message Posted: Aug 26, 2014 6:32:55 AM

I use neutral a lot since I have a manual transmission.
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John_Doe
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Message Posted: Aug 25, 2014 3:34:53 AM

no
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redfish67
Champion Author Dallas

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Message Posted: Aug 24, 2014 12:24:15 PM

no
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PaylessKY
Champion Author Kentucky

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Message Posted: Aug 24, 2014 8:12:41 AM

No
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contiki
Champion Author Ontario

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Message Posted: Aug 24, 2014 8:01:04 AM

Never.....
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b899
Champion Author Connecticut

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Message Posted: Aug 23, 2014 9:44:54 AM

no
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contiki
Champion Author Ontario

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Message Posted: Aug 23, 2014 8:21:29 AM

Never.....
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BCNU
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Message Posted: Aug 23, 2014 5:22:52 AM

no
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mrgots2000
All-Star Author New York

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Message Posted: Aug 22, 2014 2:55:10 PM

NO, not really, I'm usually speeding up during down hills especially if there is an up hill coming up, then I ease off the throttle going up hill.
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Awing1
All-Star Author Ontario

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Message Posted: Aug 22, 2014 10:42:48 AM

no
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RealtorJeff
Veteran Author San Diego

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Message Posted: Aug 22, 2014 10:17:02 AM

foot off the pedal to coast, but not going into neutral
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b899
Champion Author Connecticut

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Message Posted: Aug 22, 2014 8:47:30 AM

no
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Awing1
All-Star Author Ontario

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Message Posted: Aug 19, 2014 3:21:54 PM

No
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PaylessKY
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Message Posted: Aug 19, 2014 1:09:03 PM

No
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contiki
Champion Author Ontario

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Message Posted: Aug 18, 2014 7:40:11 AM

Never......
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Boyrr
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Message Posted: Aug 17, 2014 12:58:41 PM

nope
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dontuknowOH
Champion Author Ohio

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Message Posted: Aug 17, 2014 8:46:34 AM

When traffic conditions permit I nail each down-grade as a momentum extender with my econo vehicle, the tach. reads back to near 800 RPMs, tranny temps drop, torque loads drop also along with drivetrain loads.

Over time my mileage shows improvement, so I quit checking it, I spend on the average of $15.00 into my fuel tank, every 10 days, depends on week-end activities/extra driving. Roughly $45.00 for regular @ 1/2 tank or near that, sometimes top off when price drops down,= Monthly expense except for utility gas for home use, that's extra.
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b899
Champion Author Connecticut

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Message Posted: Aug 16, 2014 9:30:21 AM

no
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cv
Champion Author Raleigh

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Message Posted: Aug 14, 2014 6:35:55 AM

No need for me.
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RalphHightower
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Message Posted: Aug 14, 2014 6:08:35 AM

no
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Iz00
Rookie Author Colorado Springs

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Message Posted: Aug 13, 2014 11:20:40 AM

I tried that years ago with no benefit. I think it's just a placebo. I've read that modern cars have mechanisms designed to keep the engine moving while in neutral, and the gas usage from that defeats any benefit you might gain from coasting because the engine normally uses the car's momentum to avoid stalling when your foot is off the gas pedal.

[Edited by: Iz00 at 8/13/2014 11:21:38 AM EST]
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WEDDY
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Message Posted: Aug 13, 2014 9:40:54 AM

No
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dassfg
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Message Posted: Aug 13, 2014 8:16:21 AM

NO!
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ace12012
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Message Posted: Aug 12, 2014 3:41:03 PM

no.
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Awing1
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Message Posted: Aug 12, 2014 10:03:23 AM

no
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WEDDY
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Message Posted: Aug 12, 2014 9:45:45 AM

No
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dontuknowOH
Champion Author Ohio

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Message Posted: Aug 12, 2014 8:37:43 AM

Sustaining momentum is not for just anyone, becomes a bigger problem as far as to save fuel when driving. Vehicles are designed to slow to nearly a stop when the go pedal is released, and most like to apply the brakes, for security reasons(feel safer) when stopped. Some Drivers anyway.....

I once had a driver say to an officer "Yes! I was parked, My Vehicle in Park mode, My Foot on my Brake Peddle and My Parking Brake set, also"! "Wile reading He BUMPED into ME!!!.....

I then asked, would you(Officer) Please repeat what She just said, then I asked >> Just what normal person does that, when they are illegally parked, on absolute lever ground behind another vehicle, instead of at the proper marked designated marked parking spaces, right here? He then answered "She does, and DID!.... CRUNCH!!! IDLE CRUNCH.... FUEL $$~~~~gone.
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BCNU
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Message Posted: Aug 12, 2014 3:21:03 AM

no
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JKazakus
Veteran Author Indiana

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Message Posted: Aug 11, 2014 8:15:53 AM

I ran out of gas and had to shift to neutral the other day
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badbobKY
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Message Posted: Aug 10, 2014 2:25:17 PM

no
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SGLuz
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Message Posted: Aug 10, 2014 12:18:16 PM

No
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contiki
Champion Author Ontario

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Message Posted: Aug 10, 2014 8:27:05 AM

no...never...........
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stoihor
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Message Posted: Aug 8, 2014 6:25:44 PM

no
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WEDDY
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Message Posted: Aug 8, 2014 9:34:02 AM

No
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b899
Champion Author Connecticut

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Message Posted: Aug 8, 2014 7:43:20 AM

no
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twt
Champion Author Virginia Beach

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Message Posted: Aug 8, 2014 3:39:03 AM

Another stupid idea.
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