Anyone else do this? Compete against your car's....
Discussion
tigger1 said:
Evanivitch said:
On the down hill you can neutral coast from the top
Don't do this. Almost certainly uses more fuel than being in gear with modern engines...
996TT02 said:
tigger1 said:
Evanivitch said:
On the down hill you can neutral coast from the top
Don't do this. Almost certainly uses more fuel than being in gear with modern engines...tigger1 said:
There will be no fuel fed in when the wheels are driving the engine in a modern car (auto or manual). In neutral, a small amount of fuel would be used.
Except that in gear you're also getting engine braking, slowing you down faster than just coasting. Therefore it may well be balanced out by the increased rolling as you wouldn't need to be back on the accelerator until later. I noticed when I drove a new 320d ED auto now puts gearbox into neutral to coast downhill.
Thepeoplespal. Sadly, you and I are in a small minority that actually cares about the amount of fuel we use. Whatever your reason for caring about fuel consumption, (be it the cost, or the damage to the environment/our children, or the finite time the product will last - whatever the reason), it is a pleasure to read of someone with a like-minded attitude toward a natural resource that WILL eventually run out. Mainly because we are using it up at a faster and faster rate.
No doubt you and I will get many narrow minded abusers telling us that we are sad old duffers.
No doubt you and I will get many narrow minded abusers telling us that we are sad old duffers.
thepeoplespal said:
Best I've achieved so far is 51.2 mpg averaging 62mph with my recent change to a 1.8 tdci C-max, the speed limited sections on M25 really bump up the economy.
Averaging 62mph! Wow, thats going some. I drove 400 round trip to Kent last month, M3/M25 etc did it all at Warp8... ;-) Average for the whole trip was only 50mph and that was really pushing on.I must admit to doing it sometimes, I always beat the trip computer using a brim-to-brim measurement, Renault seems to underestimate fuel usage to the tune of 2-4mpg over a tank.
I once drove Dorset to York and back to colect an ebay purchase (it was a friggin bargain :-) cruised up slowly through rush hour traffic and slowly back in the dark and rain, averaged 66mpg from 1.9TD, mostly driving 65mph on the motorway, usually averages 52mpg at "normal" motorway speed. If I don't pay attention I normally get 49-50mpg.
brrapp said:
generationx said:
I make it a mission to try and beat my satnav eta as much as possible. This usually has a detrimental effect on mpg...
Me too, I love to race the sat nav although it's never very magnanimous in defeat, doesn't even acknowledge it got it wrong.I do this when I have the wife and kids in the car.
For me, it's a game of fuel economy one-upmanship with myself.
As far as the wife is concerned, I am a careful, courteous and smooth driver.
Everyone's a winner!
Side note: I drive a supercharged Merc, so whenever I hit 30mpg+ whilst playing this game, I become inordinately happy.
For me, it's a game of fuel economy one-upmanship with myself.
As far as the wife is concerned, I am a careful, courteous and smooth driver.
Everyone's a winner!
Side note: I drive a supercharged Merc, so whenever I hit 30mpg+ whilst playing this game, I become inordinately happy.
J__D said:
tigger1 said:
There will be no fuel fed in when the wheels are driving the engine in a modern car (auto or manual). In neutral, a small amount of fuel would be used.
Except that in gear you're also getting engine braking, slowing you down faster than just coasting. Therefore it may well be balanced out by the increased rolling as you wouldn't need to be back on the accelerator until later. I noticed when I drove a new 320d ED auto now puts gearbox into neutral to coast downhill.
thepeoplespal said:
.. computer for better mpg on a long trip? I've a fairly regular 150mile trip on M40 and M25 and in an attempt to remain with a licence, I've started to compete against the average mpg computer reading, I try this by avoiding the average mpg reading from increasing while still maintaining a decent average speed for the whole journey.
Best I've achieved so far is 51.2 mpg averaging 62mph with my recent change to a 1.8 tdci C-max, the speed limited sections on M25 really bump up the economy. I've also found that roof bars cost between 3.5 and 5.0mpg on my longer journeys.
Biggest surprise is a trip computer that is actually slightly pessimistic, but 0.2mpg difference on a brim to brim is not far of completely accurate in my books.
My god you must be fun on a night out. Best I've achieved so far is 51.2 mpg averaging 62mph with my recent change to a 1.8 tdci C-max, the speed limited sections on M25 really bump up the economy. I've also found that roof bars cost between 3.5 and 5.0mpg on my longer journeys.
Biggest surprise is a trip computer that is actually slightly pessimistic, but 0.2mpg difference on a brim to brim is not far of completely accurate in my books.
generationx said:
I make it a mission to try and beat my satnav eta as much as possible. This usually has a detrimental effect on mpg...
Another one here, it's great having something to compete with. The only time I drive with any consideration to the mpg is when I'm almost out of fuel and nursing it to a petrol station.
The BMW gets somewhere around 18mpg in normal use on the trip computer. The Subaru seems to be quite economical in the mid to high 20s.
scubadude said:
Averaging 62mph! Wow, thats going some. I drove 400 round trip to Kent last month, M3/M25 etc did it all at Warp8... ;-) Average for the whole trip was only 50mph and that was really pushing on.
Averaging 50mph is pretty good in the UK generally. It's what I'd base ETA times on if planning long journeys. You do have to be going some to beat it though.The first time I went to Germany on a motorbike (unfaired Triumph Speed Triple) we averaged 78mph on the first day according to the satnav including the ride through Holland.
Edited by Speed addicted on Monday 27th February 12:24
Edited by Speed addicted on Monday 27th February 12:25
spookly said:
generationx said:
I make it a mission to try and beat my satnav eta as much as possible. This usually has a detrimental effect on mpg...
I do this too. I must admit I have managed to beat it by a very large margin. MPG was well sub 20.I found myself doing exactly this 'I'll arrive at 9.45, I'll show you, I bet I'm there before half past'
The Crack Fox said:
brrapp said:
generationx said:
I make it a mission to try and beat my satnav eta as much as possible. This usually has a detrimental effect on mpg...
Me too, I love to race the sat nav although it's never very magnanimous in defeat, doesn't even acknowledge it got it wrong.Actual arrival at home: 20:30
However I am not quite sure why my car does this, it clearly miscalculates some part of the A303 to be missing, or much slower than it really is. I don't know. It is a relatively new map update on the car as well, 2015 version.
thebraketester said:
You really are sad old duffers.
Sitting at 75 to 80 leptons most of the time, while also getting 50+ mpg overall makes this Old duffer happy enough to be "sad". Don't think I could ever really do the hypermileing thing properly, but playing at beating a computer while maintaining a good average speed helps me keep interested in my regular journey.Predicted times on these things are pretty far off though, last night I was cycling on my way back from a pretty long bike ride with tired legs.
On checking where I had to go to find my car there was a predicted driving time of 30 mins down an A road. I made it in 50 mins on a bike and I definitely wasn't going fast.
On checking where I had to go to find my car there was a predicted driving time of 30 mins down an A road. I made it in 50 mins on a bike and I definitely wasn't going fast.
I had an indicated 80mpg after 25 miles of trundling down the M40 and M25. I was clearly on for a new personal best, but the whole thing was scuppered by a tailback on the A41. Back down to mid 60s mpg by the time I got home. Gutted.
It's too much effort to try this more than once or twice a month though, most of the time I just want to get home.
It's too much effort to try this more than once or twice a month though, most of the time I just want to get home.
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