Patrico777 Posted August 12, 2016 Share Posted August 12, 2016 I have question regarding gearbox and the engine for example i go downhill is it ok for the car to put the gear in neutral to save some petrol ? I no on my diesel it was not possible as turbo can damage it self but petrol is different right ? Quote Link to comment Share on other sites More sharing options...
Russ Posted August 12, 2016 Share Posted August 12, 2016 It's an offence to throw the car into neutral and coast and anyway when you take your foot off the accelerator (whilst in gear) the car uses minimal fuel. up vote35down voteaccepted If the car is equipped with a modern fuel injection system, it will likely use less if left in gear and allowed to run against the transmission with no throttle as modern fuel injection systems can and do shut down the injectors completely thus use no fuel whatsoever. If the engine is at idle in neutral, the ECU will have to use a small amount of fuel to keep the engine turning. 4 Quote Link to comment Share on other sites More sharing options...
iantt Posted August 12, 2016 Share Posted August 12, 2016 your not saving petrol, your using more, when on overun, ie down a hill in gear, there is no fuel being injected in to the cylinders, until around 1000rpm approx. in neutral with nengine ticking over you are using fuel to maintain idle speed. 2 Quote Link to comment Share on other sites More sharing options...
Stoney871 Posted August 12, 2016 Share Posted August 12, 2016 As above. You lose engine braking which is dangerous. Most cars nowadays actually cut fuel to the injectors when coasting. TBH, the amount of fuel you'd save by rolling in neutral is minimal, also you'll ruin your clutch and gearbox jamming it into gear while coasting at speed. Sent from my SM-G930F 4 Quote Link to comment Share on other sites More sharing options...
Patrico777 Posted August 12, 2016 Author Share Posted August 12, 2016 Thanks for the replies I take it on board that why I asked as I did not no 2 Quote Link to comment Share on other sites More sharing options...
dave_k Posted August 12, 2016 Share Posted August 12, 2016 Avoid, not a great practise to get into for reasons including those mentioned above. Quote Link to comment Share on other sites More sharing options...
TomsFocus Posted August 12, 2016 Share Posted August 12, 2016 You can't coast in neutral in the ST150 anyway, unless you can put up with the annoying idle bounce! As above though, it doesn't save you any fuel, just makes for a slightly lazier, smoother ride with fewer gearchanges - I probably coast more than I should, bad habit though! Quote Link to comment Share on other sites More sharing options...
jmurray01 Posted August 13, 2016 Share Posted August 13, 2016 21 hours ago, TomsFocus said: You can't coast in neutral in the ST150 anyway, unless you can put up with the annoying idle bounce! As above though, it doesn't save you any fuel, just makes for a slightly lazier, smoother ride with fewer gearchanges - I probably coast more than I should, bad habit though! Me too, and yes it is a bad habit. If I can maintain my current gear I won't coast, because there is no reason to go near the clutch. If I need to declutch though (slowing down in 5th for example) then I do coast for a while until I need to speed up again. Deliberately going into neutral though is just downright dangerous as you couldn't quickly accelerate should you need to. Quote Link to comment Share on other sites More sharing options...
Patrico777 Posted August 13, 2016 Author Share Posted August 13, 2016 That is true guys its bad habbit Quote Link to comment Share on other sites More sharing options...
wealdman Posted August 15, 2016 Share Posted August 15, 2016 Food for thought:- http://www.dailymail.co.uk/news/article-3741536/Driver-21-killed-three-friends-coasted-hill-neutral-save-petrol-trip-McDonald-s.html Quote Link to comment Share on other sites More sharing options...
Jazman23 Posted August 15, 2016 Share Posted August 15, 2016 Pretty sure not much energy is wasted with ford these days anyway,. Fords have regenerative braking that also works when decelerating / going down hill. Fuel is cut to the engine saving fuel and ecxess energy from the engine is sent to the alternator to charge it on deceleration / downhill travel at least that's what I read about the newer fords 1 Quote Link to comment Share on other sites More sharing options...
karl46 Posted August 15, 2016 Share Posted August 15, 2016 This news article should answer your question. http://www.dailymail.co.uk/news/article-3741536/Driver-21-killed-three-friends-coasted-hill-neutral-save-petrol-trip-McDonald-s.html 1 Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Ford UK Shop
Sponsored Ad
Name: eBay
Ford Model: FordUK Shop
Ford Year: 2024
Latest Deals
Ford UK Shop for genuine Ford parts & accessoriesDisclaimer: As the club is an eBay Partner, The club may be compensated if you make a purchase via the club
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.