Question:
Answers:
Leave the car in top gear and take your foot off the accelerator.If you ever drive a car with an economy gauge you will see that it goes off the scale.
Do not drop the clutch or take it out of gear as you can damage the engine/gearbox when trying to match the revs to speed afterwards.
Why do some people prefer to use thier cars to reach a destination than public transport?
brakes dont woooooooooork waaaaaaalllyBest color to put on a sports car?
it don't make any difference just take u're foot off the accelerator but don't turn off engine you will be breaking the law.In theory yes, but I wouldn't try it. You would lose the power to the servos on the brakes and the power steering. If you found yourself having to take evasive action you could be in serious trouble. Just flog what you have and buy a diesel. E-mail me with a budget and a wish list and I might have a few suggestions for you.
No, cause it's just going to take up more gas by having to start your vehicle again.
no ! as you use just as much fule re starting it, plus its against the law as its classed as not being in full controll of the car , this leading to due care and attion , if proven by police big fine points poss loss of licence . so in long run not saving you nothing
hope this helps
wes
Why a driver would not be able to control steering wheel?
When switching off the ignition you can lose power steering. and idling I think you mean coasting (out of gear)BOTH VERY DANGEROUS PRACTISE
Which has a greater momentum, an airplane parked in hangar or a car going down the hill?
To get more mpg drive with a light right foot
Do they even still have ashtrays in cars nowadays?
You can't both switch off the engine - and idle !Is 6 hours of driving too tiring for a new licence driver? im in my mid 20s. f.?
'Idling' is when the vehicle is in neutral but with the engine running.
A Lexus IS AWD or a Infiiti G35 coupe? Which is your pick and y?
Switching off the engine kills your power steering and all electrical power to things like brakes/indicators/lights.
It is illegal as you have no control of the vehicle.
Need a car that is very economical, but want it to look sporty.?
What you save by switching off is lost my the injection of fuel when you start the engine again.
Fuel contamination problems with a lot of cars in the UK. Is this the coming of carmageddon?
If you keep the car in gear and dont press the throttle, you use no fuel - i think the wheels turning keep the engine turning and so it doesnt use fuel. You can switch the car off at the traffic lights to save fuel, the car uses it to idle and stop itself stalling. If you switch a moving car off the brake servoes switch off and the brakes go rock hard, need to press them like a nutter - not safe if a kid walks in front of you. sticking to spped limit and keeping ur tyres well pumped the best for fuel im afraid.What are the fundamentals of towing?
ssshhhhh, this is a secret coz its illegal - we cruise in neutral the last mile home everytime we come home! we live at the bottom a large hill, not steep but long, as soon as we start coming downhill, its into neutral and glide into the drive! Usually have to break to save putting the car through the bay window!Saves a bit of petrol and a bit of polution ;-)
Idling is the engine running. Or do you mean neutral gear?
Rolling down a hill in neutral might save gas..
No, at high vacuum when coasting down a hill any modern vehicle shuts off the fuel to the motor anyways if your foot is off the gas. Turning the motor off or taking the car out of gear is highly dangerous, and illegal in every state.
If u switch off the engine the steering lock will engage? crash!
Describe the pros and cons of an electronic toll highway?
You can but its dangerous because you are not in full control of the car and if you switch off you may lock the steering wheel.Does anybody have a Mazda 5 GT?
they missed the whole point...Which country has the worst drivers ??
Turn off your car going down an hill and as soon as you move the steering wheel it will lock, you will then be a ballistic object along for the ride that ends your life and others on the highway. yes your steering will be sluggish and your brakes will be mush too. They will at least function, just with more force. The steering wheel thing will kill you.
What is the difference between AWD, FWD, 4WD,4x4?
Most computer controlled fuel injection engines do not operate the fuel injectors at closed throttle high vacum(engine braking) and hence just taking your lead foot off the gas stops fuel consumption.
Why does everybody think cars are girls?
I am unimpressed with the level of knowledge displayed by the folks answering these questions
How do heated seats in vehicles work?
ASE cert Auto Tech for 30 years
Has a rickshaw ever been used as a fire engine in the far east?
hey why you want to switch the engine off - i guess putting into neutral and coasting does save fuel and pollution too.But coasting is illegal - i wonder why? but it is.
I have been delivering newspapers for a while now ( thats a lot of miles daily). I did a little test for a week where anytime I was coasting I would put it in Neutral, the result I came out with shocked me. I burned through gas like it was nothing. So I concluded that actually changing the gear was burning up more gas than just coasting idle. although if your going down a hill that is a mile long, maybe it is worth it, but DEFINITELY DON'T turn off your engine. Power brakes, Power steering, wheel lock. All those are very dangerous in a moving car that is not running. Your car is Always burning some gas, whether it is in neutral or idling or even going down hill. The tires have nothing to do with the engine running. The pistons will always be moving if your car is on, and they are what basically use the gas(the explosion of gas pushes the piston up, it comes back down, it explodes again.) I would love to know myself if anyone has a source, because I've researched this since before I did that test, and it seems like noone has actually asked, let alone MythBusted, the idea. Now there's an Idea.
Are electric cars really the answer to America's green house gas problem?
NO....Why my car door gives an electric shock when I close it after a drive?
This theory abounded in the 60's/70's and was illegal then and still is today. Simple answer; NO to switching off/on down hill. This type of 'bad' driving caused unnecessary deaths, severe injuries eg para and quadraplegics, acquired brain injury and so the list goes.Ideling? This depends on where you are and how long you are likely to sit ideling eg traffic jam/accident/roadworks this is a calculated decision made as situation arises. So a possible 'YES' to this one.
Best way of getting good mpg is keep your car regularly serviced and make sure tyres are always inflated to their required running capacity.
If you think of your car as a loaded shotgun then you should know that if not treated with respect, maintained and used in a safe manner then it is a dangerous weapon to you and others.
A car has the same capacity to kill and maime unnecessarily if operated without thought to safety as a loaded shotgun has.
Last thought, is a few cents saved worth your life? And/Or, others?
Drive carefull and within the law and you will save more than a few cents in the long term.
Happy driving ",)
would not do this you will lose control of the car due to no engine running, no brakes, no power steering and possible locking your steering wheel. BIG RISK
What do you think about leasing vehicles. We're curretly in a lease and.?
I remember reading many years ago an article in a motoring magazine where a driver in the states attained very high MPG in a Jaguar.In an area with long straight level stretches of road, he slowly accelerated to around top speed then coasted until he slowed to about 20 mph. then repeating the action.
The results MPG wise were spectacular, though I can't recall the exact figures.
This would not be possible in a modern car.
What do the characters in VIN numbers mean?
knock it into neutral but don't switch engine off cause ya brakes an if it's got it power steering will be impairedbest way to test it is fill the fuel tank reset trip meter drive a hilly route then go to garage fill fuel tank note miles and litres reset trip drive it all again and calculate difference
This is madness, especially some of the replies.
what is said about losing power steering & brake servo assistance is true enough by switching off the engine - but consider this one, some modern cars use electrically operated power steering, whereby if electricity is cut (eg. cutting the ignition) you lose ALL steering ability - there have been incidences of this happening in normal situations were a wire had been damaged.
I rebuilt the alternator in my '97 Acura, but.?
as for idling, i don't think and engine uses that much fuel in truth, conpared with switching off at the traffic lights as you burn more just starting it up (fuel is 'dumped' into the engine before starting) not to mention wasting time trying to get the thing started. also as regards to coasting down a hill... you are idling which burning some fuel; but if you leave it in gear and leave your foot off the throttle the engine burns next to no fuel at all - modern fuel injection cuts the fuel at this point under engine braking.
What are the electric scooter laws for lake county indiana?
Yes, of course you can. But it's stupid and dangerous. Not to mention illegal.What is the letter symbol when applying for hazmat on ca cdl?
No, it takes more gas to restart.What would you buy a Chevy Aveo or a Hundai Accent?
Like most answerers say switching of is not an option but I seem to remember that some cars from the old eastern bloc countries used to have an "overrun freewheel" that is when you lift off of the throttle there was no engine braking as the power was only transmitted to drive, I dont know if they were/are legal as this freewheeling is against the law business may be an urban or rural myth.Wat does 4 low and 4 high stand for in a truck?
yes you can but its illegal to do so because if you had to stop fast you cant push the brakes hard enough to stop that fast. and the steering is also allot harder to do a fast turn if you had to. you can idle a car down a hill but put it in 5th gear and coast just in case your brakes go out. on autos just coast in gear you will slow down but not muchHelp! I Need A Car in Two Weeks -- I only have $ 2000.00 :(?
Yes but the difference would be barely measureable andwould not be worth the risk to your vehicle or your safety.
You would do better to reduce the length of time you spend
idling at traffic lights. I time my approach to virtually eliminate
waiting in traffic. If you're lucky, you live in a city with traffic
light enough to do this. Once your speed is less than 15mph
or so, your average gas mileage is decreasing. Coast as
much as you can and make your engine work as little as
possible. Doing this gets me 29mpg (city) in my 2.4L Grand
Am and 15mpg in my Dodge truck 5.9L. (24 and 12 before)
Can the police legally scan my liscense plates for no reason?
The answers given demonstrate so many misconceptions.Green Double Decker bus in Rome.?
The safety issue really only relates to brakes and power-steering, because engine-braking does not usually amount to very much in higher gears, and coasting in neutral does not reduce that particular source of braking enough to make much difference.
What are the advantages (if any) of a diesel vs. gasoline powered automobile?
It could be said that in large goods vehicles, the practice of coasting in neutral can be hazardous, due to the fact that the air and hydraulic pumps slow down, which could possibly result in loss of brake air-pressure and power-steering hydraulic-pressure.
Most vehicles, when going downhill, now cut off the fuel to the injection, and even some complex carburettors did the same.
With cheap car tires, should I be concerned with the tread seperating?
So it's really a safety issue more than anything else.
Made or Manufactured in America?
However, certain vehicles did indeed have a free-wheel machanism: among them, the old Saab 96. Rally drivers loved them, because they could lift off the throttle, let the revs die, and then change gear whilst using their LEFT foot on the brake pedal.
Also, many automatic cars of old, offered no engine-braking at all unless they were placed in D2 or Lock-up.
Details about truck driving job?
Modern automatic trucks DO give engine braking and DO NOT go into idle mode downhill, so that the exhaust brake will function, and all the air and hydraulic pumps will be kept up to speed.
I am a truck driver, can someone tell me when the poles make me unemoloyed?
In reality, coasting as a safety issue is over-played when it comes to cars, but with trucks and other heavuy-vehicles, it is more of an issue if there are, for instance, any air-leaks.
Switching off the engine completely, unless it is an old car without a brake-servo or power-steering, can be very dangerous indeed, as the brakes become extremely heavy and the steering very hard to turn.
What do u think is more fun & better & easier?
Of course, when we all start driving electric-cars, we will have to get used to coasting downhill, shan't we?
Manual transmission: Okay to slow by down-shifting?
dont do it no brakes no steering your gunna dieMore Questions & Answers ...
This article contents is post by this website user, CarQnA.com doesn't promise its accuracy.
Copyright 2006-2008-2007 CarQnA.com. All Rights Reserved.