Ive been trying this in my truck lately,much to the annoyance of the trucks behind me.But really,you waste so much fuel in a truck because you dont use momentum.You can ease of the accelerator 1/4 mile before a roundabout and the fuel saving is huge but only adding a couple of minutes to the journey.Im using this technique in my car now.
Have you tried it?
Yes my Actros has PPC so I try to be in Ecoroll gear as much as possible.
My merc has ppc too,but I find it tends to go into the roundabouts a bit too fast.
What you are describing is professional driving, sadly rapidly vanishing for a variety of reasons, lots more goes with this to maintaining good progress plus getting the best out of your vehicle withj minimal wear and tear.
Yes i do similar in my car.
Does it hold others up? overall no, yes on approaches to junctions most drivers of all classes of vehicle drive on the brakes leaving slowing till the last moment, typical car driver technique, so yes they are right up your chuff but oddly enough after the roundabout they arn’t because they haven’t planned or observed ahead for maximum easy progress.
Easy enough to tell who drives on the brakes, just look at the front wheels and observe their typical tailgating.
By the way, i’m in charge of what speed the vehicle travels at, at all times, not the sodding computer.
This ^^^^ I’ve driven that way for years. I didn’t call it hypermiling, I called it driving properly when in a company vehicle and I called it saving money in order to buy more beer when in a vehicle I owned.
Apart from motorcycles of course, there’s no fun to be had in fuel economy there.
I let go of the gas up to 1/2 mile before a roundabout, terrain/slope dependent. I accelerate slowly (as you should in a truck), rarely drive up to the limiter, if limit is 50 I do 50.
I use up 120-125l per 550km of mostly A roads, incl. 49 roundabouts daily. Sadly we don’t get fuel bonus 
Sometimes I drive like a tard and try to ‘‘make time’’ and it can be 135l+ at the pump
I had a newly passed van-to-class 1 driver with me a few weeks ago. He pretty much never coasted he would flat out at the limiter until 150m-200m before the roundabout then press brakes 100%/I didm’t say anything as it’s technically nothing wrong with that and I’m not an assessor just another fellow driver
Years ago Scania used to run courses on how to drive their vehicles,they always said run in the green and let the torque do the work. Along with a course of defensive driver training,never had a problem with holding up the ones behind and still had good fuel consumption and rarely took more than 5-10 extra minutes on a run.
All down to modern day “drivers” rushing about because a computer says a job should take ex amount of hours,and look at me Boss I did it
Yes,thats right,we are delivering goods,there shouldnt be a need to get there in breakneck speed at the expense of fuel economy
The job is a lot less stressful if you just take as much time as you need. I think that driving schools are now telling the candidates to either be on the brakes or the accelerator.
Yes, this is what I try to do whether in the car or a lorry. What is the point in accelerating between roundabouts etc, which are only a short distance apart, beyond a certain speed and then letting it roll, either in or ‘out’ of gear? Yes I get it wrong sometimes between traffic lights and have to stop when I might have got through if I had been 20 yards nearer, but I haven’t got a crystal ball.
Sploom:
My merc has ppc too,but I find it tends to go into the roundabouts a bit too fast.
What settings do you use for cornering? I’ve set mine to max but I still find it’s too slow.
Sploom:
Ive been trying this in my truck lately,much to the annoyance of the trucks behind me.But really,you waste so much fuel in a truck because you dont use momentum.You can ease of the accelerator 1/4 mile before a roundabout and the fuel saving is huge but only adding a couple of minutes to the journey.Im using this technique in my car now.
Have you tried it?
You shouldn’t be holding up anyone. When I worked at Geopost they sent you down to Smethwick when you first started where you spent a week doing defensive and economical driver training. One of the goals you had to achieve was to do the test route FASTER than when you started out at the beginning of the course in addition to having a higher MPG.
The easing off the accelerator and using engine braking is only half of the story. The other half is trying to time arriving at junctions, roundabouts and traffic lights so that you don’t need to come to a stop. And because you don’t you end up going faster overall over that stretch.
Yes,sure,I will have to look at adjusting the settings,although Im not a great fan of having a robot helping me to drive,especially the way it pulls on the steering when cross over the white lines
Years ago a wise old truckie told me expensive fuel makes energy. It was then the driver’s choice how that energy was used. The alternatives are heat energy, dissipated through the brakes or potential energy, propelling the vehicle.
Combine that with a bit of common sense when accelerating, you have a safe and economical driver.
I used to own a V8 Land Rover that I consistently got 22 mpg from. Fellow Land Rover owners refused to believe that was possible. I owned that car for 208,000km, in which time it consumed one set of disc pads (front and rear) and one and a half sets of tyres, which also surprised many.
It’s not just fuel that is saved by driving sensibly. I don’t feel that I drive anally for economy, but I drive economically.
Great stuff!
It really doesn’t make much of difference in time to drive in a fuel efficient manner and as I say to my wife and kid many people will drive quicker than me but won’t get any further ahead because I like many others spend so much time driving we can read a road better than most and gain it back that way.
Was on M25 in traffic earlier 
and was just chugging along at a few moh to keep rolling, hardly had to stop. Meanwhile a fellow professional in lane two beside me chose to use his accelerator and brake pedals as stop/go buttons - you know the type floor us for five seconds then hammer the anchors on. No further forward in the end, bet his vehicle felt it more and most importantly I bet he felt it more in terms of stress.
If you had been taught to Drive correctly regardless of vehicle, you would have been driving this way from the start and continued to drive the same way in every vehicle that you pretended to control !!
It also lead to Defensive Driving because you are more alert and aware of your surroundings, it will also give you a good following distance (Space Cushion) so if something happens in front of you, you can stop yourself being apart of it…
I rarely…
Actually stop at roundabouts or lights unless they’re rammed like Newark is. Time things right and you can walk up to last vehicle in the queue and as they set off, give it a little juice and get going again. Motorway slip roads that are uphill are another place you can time things to keep going without touching the brakes.
Will I dare to get my wife to read this? If you never hear from me again, it’s cos I have. 
I do not hyper mile. I do not give a crap about maximizing MPG. All I care about driving safely.
I did use to for sure, when a lot of trucks were manual. I made a real effort to save on fuel.
But now, not so much. Most of these auto boxes are set up in such a way to already maximise your MPG at the expense of driver choice. e.g. auto changing gear too early. Yea, there are ways to set the auto to manual mode but… cba unless in very specific cases.
I do wonder as a whole if the industry switch to AUTO has on average saved fuel. Possibly. But a good driver in my view will always save most fuel driving a manual.