FiREFLi Posted August 22, 2005 Share Posted August 22, 2005 Ok, so I'm driving in top gear. I've always thought it's more efficient to drive slower but it also takes longer. So... I've been thinking and I reckon that how fast you go makes no difference to your fuel efficiency. The time saved by going faster shouldn't save you any fuel compared to going less fast and taking more time. Am I right? :huh: Link to comment Share on other sites More sharing options...
PHiZZy Posted August 22, 2005 Share Posted August 22, 2005 cars are generally more fuel efficient in a higher gear at low revs Link to comment Share on other sites More sharing options...
Kosh Posted August 22, 2005 Share Posted August 22, 2005 Ok, so I'm driving in top gear. I've always thought it's more efficient to drive slower but it also takes longer. So...I've been thinking and I reckon that how fast you go makes no difference to your fuel efficiency. The time saved by going faster shouldn't save you any fuel compared to going less fast and taking more time. Am I right? :huh: 586414325[/snapback] so i think there must be a reason when car-companies say: this car needs 8 liters per 100 kilometers and not this car needs 8 liters per 1 hour :D ERGO: when you drive your car in a higher gear, and at low speed, you need less fuel. Link to comment Share on other sites More sharing options...
hardy Posted August 22, 2005 Share Posted August 22, 2005 the reason why that doesnt work is you need to remember wind resistance. Because of that most companies say about 80km/h is most efficent Link to comment Share on other sites More sharing options...
Tomo Posted August 22, 2005 Share Posted August 22, 2005 Top gear at around 57 mph is most efficient Link to comment Share on other sites More sharing options...
Dick Montage Posted August 22, 2005 Share Posted August 22, 2005 Tomo, that's what I have heard too - about the 57 mark in 5th. I also turn off all my traction crontrol, steering enhancements, etc and I know it sounds silly, but this gets me a little extra mpg too. But it boils down to this: Accellerating is what burns the most fuel. If you drive at a consistent speed, not burning off then braking, etc, you will get the best from your car. Link to comment Share on other sites More sharing options...
FiREFLi Posted August 22, 2005 Author Share Posted August 22, 2005 Thanks guys. It was just wishful thinking after all :( Link to comment Share on other sites More sharing options...
Louisville Slugger Posted August 22, 2005 Share Posted August 22, 2005 Slowest speed in highest gear would be the most efficient, correct? Link to comment Share on other sites More sharing options...
VGVL Posted August 22, 2005 Share Posted August 22, 2005 The most efficient way to drive is to go as fast as you can until your car can't go any faster, then put it in neutral and turn the engine off. I've always wanted to do that. :laugh: Link to comment Share on other sites More sharing options...
FiREFLi Posted August 23, 2005 Author Share Posted August 23, 2005 The most efficient way to drive is to go as fast as you can until your car can't go any faster, then put it in neutral and turn the engine off.I've always wanted to do that. :laugh: 586417460[/snapback] That's really not the most efficient way of driving is it now... :p Link to comment Share on other sites More sharing options...
Wizz Posted August 23, 2005 Share Posted August 23, 2005 The most efficient way to drive is to go as fast as you can until your car can't go any faster, then put it in neutral and turn the engine off.I've always wanted to do that. :laugh: 586417460[/snapback] Actually a modern engine uses approximately no fuel when idling. And cars use quite a bit of fuel starting up so its probably best not to do that. Link to comment Share on other sites More sharing options...
kombolcha Posted August 23, 2005 Share Posted August 23, 2005 i've wondered that too.. i've maximized my mpgs for school this year.. i do about 50 - 60mph everyday to school. gas is $2.70 /gal - $20 a week = about 8gallons of gas.. 40miles a week + 50 miles misc driving = 90 miles.. average 22MPG = thats about 4 Gal. for the week.. i think every two or three weeks i can skip i week of gas because i'll have enough. basically, don't accelerate hard all the time, scan the road ahead and anticipate stops so that you can let off the gas and coast, and pick the best times for traveling. early in the morning, before traffic, or after traffic. also, there's no need for AC if you're in California :happy: Link to comment Share on other sites More sharing options...
dj6ross Posted August 23, 2005 Share Posted August 23, 2005 The most efficient way to drive is to go as fast as you can until your car can't go any faster, then put it in neutral and turn the engine off.I've always wanted to do that. :laugh: 586417460[/snapback] Most cars the steering wheel would lock, even if your turned the key back part way you would have no power steering. I go from 5th to neutral 100yds or so before stop signs and just coast...after all 17mpg isn't enough it's expensive :wacko: Link to comment Share on other sites More sharing options...
vraa Posted August 25, 2005 Share Posted August 25, 2005 I get about 8mpg. Average speed around 120mph and always accelerating. :D Link to comment Share on other sites More sharing options...
+E.Worm Jimmy Subscriber¹ Posted August 25, 2005 Subscriber¹ Share Posted August 25, 2005 Actually a modern engine uses approximately no fuel when idling. And cars use quite a bit of fuel starting up so its probably best not to do that. 586419622[/snapback] no actually, from what i have heard, if you are going to stop for more then a minute it is more fuel efficient to shut off and start then idle. Link to comment Share on other sites More sharing options...
amrinders87 Posted August 25, 2005 Share Posted August 25, 2005 no actually, from what i have heard, if you are going to stop for more then a minute it is more fuel efficient to shut off and start then idle. 586428116[/snapback] but do you know how it would screw your starter if you did that every red light. Link to comment Share on other sites More sharing options...
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