whats cruise control?
shuttlespanker:
Pimpdaddy:
No it’s not rocket science. Don’t tell me you’re also too stupid to realise how inaccurate the indicated consumption on the dash is, hence management not relying on it for their figures…no i’m not too stupid to realise this, this is why i work it out with a calculator based on KM’s driven and quantity of fuel put in the tank
1000 miles driven
7.5mpg = 133.333 gallons = 606 litres x £1.38 per litre = £836.28
9.0mpg = 111.111 gallons = 505 litres x £1.38 per litre = £696.90
so, even on a low mileage week such as 1000 miles, it saves £139.38 per week
the above calculations were provided free of charge to prove to the stupid people amongst us how much difference it can make
hope this helps
Yes that does help, I’ll get an indicated mpg of 7.5 on the way out loaded heavy & 9.0 on my way back empty, all running @ 56mph, so the difference is…■■?
gogzy:
whats cruise control?
he’s a member on here, real name is James, he’s on facebook too 
Pimpdaddy:
shuttlespanker:
Pimpdaddy:
No it’s not rocket science. Don’t tell me you’re also too stupid to realise how inaccurate the indicated consumption on the dash is, hence management not relying on it for their figures…no i’m not too stupid to realise this, this is why i work it out with a calculator based on KM’s driven and quantity of fuel put in the tank
1000 miles driven
7.5mpg = 133.333 gallons = 606 litres x £1.38 per litre = £836.28
9.0mpg = 111.111 gallons = 505 litres x £1.38 per litre = £696.90
so, even on a low mileage week such as 1000 miles, it saves £139.38 per week
the above calculations were provided free of charge to prove to the stupid people amongst us how much difference it can make
hope this helps
Yes that does help, I’ll get an indicated mpg of 7.5 on the way out loaded heavy & 9.0 on my way back empty, all running @ 56mph, do the difference is…■■?
yes, but, yours is worked out over 1 trip, mine is worked out over a week 
Ok then calculate the additional time wasted, wages bill for extra hours incurred etc, all works out the same to me working on your theory…
Pimpdaddy:
One of the mechanics in our local dealer said to us it doesn’t really save fuel at all, it reduces instantaneous consumption but levels out because the engine has to run for a longer time I.e 56miles @ 56mph=1h, 56miles @ 50mph=1h6min. That extra 6 min still burns fuel & co2 emissions are produced, common sense but clearly management & some drivers are too stupid to figure that out-it’s called ‘false economy’…!
No, you and your “mechanic” colleague are too stupid to see that it takes less effort and therefore fuel to move a vehicle along at a lower speed.
It doesn’t matter if it takes a little longer.
That’s why the measurement is in miles per gallon and not gallons per hour.
Trying to keep it simple here.
Regards,
Nick.
I am so confused as to why daf need to set the cruise control? Is that not the drivers job, I’ve only driven MAN, Scania and merc trucks and only the last 2 with cruise but on both I set it to what I want :s I can knock it up or down as I wish…
Can someone explain?
I also had a right laugh about fuel consumption! I’m glad you have your head screwed on Shuttlespanker! To think that people don’t get that mpg means ‘miles per gallon’! Regardless of time! Hahaha
Pimpdaddy:
Ok then calculate the additional time wasted, wages bill for extra hours incurred etc, all works out the same to me working on your theory…
1000 miles at 56mph = 17.85 hours
1000 miles at 50 mph = 20 hours
So unless Spankers is paying 70 quid an hour he’s laughin
I’m just amazed that the company told a holiday relief agency driver to take a vehicle into a main dealer to have the cruise control adjusted.
Harry Monk:
I’m just amazed that the company told a holiday relief agency driver to take a vehicle into a main dealer to have the cruise control adjusted.
and I can’t believe it’s not butter 
If it took less effort why does the gearbox change up & down more because the revs are in an unsuitable position for the speed you’re doing ? More gear changes=more fuel wasted…
djw:
I can’t think there’s any legal restriction on the settings of the cruise control, so long as they don’t take the vehicle outside its type approval or allow you to override the speed limiter setting configured by the tachograph centre. I can’t see a dealer having authorisation to do either of these things (unless they’re also a tachograph centre and are prepared to take the risk of tampering with the limiter).
Not entirely correct my pedigree chum.
The speed limiter is set by adjusting the ECU settings, for this a dealer level diagnostics kit is required.
The tachograph doesn’t regulate the max speed.
It is not illegal for the dealers to remove the speed limiter, but it is illegal for you to run without the limiter properly set.
When we calibrate tacho’s, the ‘speed run’ is done on the rollers at 40 mph, so the tachograph never gets near the limiter, the tacho calibrator doesn’t know wether the limiter works or not, cos they don’t run it up to it’s limiter.
All they do is certify that the tacho is accurate at recording the correct speed.
So you can have the dealers remove/increase the limiter, have the tacho calibrated properly and the only person who’ll get in bother is the driver/operator if they get tugged.
IIRC it’s a £120 graduated fixed penalty for not having the limiter properly set.
Harry Monk:
I’m just amazed that the company told a holiday relief agency driver to take a vehicle into a main dealer to have the cruise control adjusted.
It’ll be the easiest £60 the dealers have ever made :0 
cieranc:
Harry Monk:
I’m just amazed that the company told a holiday relief agency driver to take a vehicle into a main dealer to have the cruise control adjusted.It’ll be the easiest £60 the dealers have ever made :0
When we had to have a load of 2004 7.5 tonners retro limited for test the dealer just sent out stickers to put on the doors and said they’d come out later after the tests and actually set them - 3 years (and tests) later they still hadn’t been.
I can’t understand that, because they check the limiter on test. They plug a testbox into the truck to simulate the truck speeding up, then see where the limiter cuts in.
To get one through test unchecked would be lucky, but all of them through 3 tests ■■?
cieranc:
djw:
I can’t think there’s any legal restriction on the settings of the cruise control, so long as they don’t take the vehicle outside its type approval or allow you to override the speed limiter setting configured by the tachograph centre. I can’t see a dealer having authorisation to do either of these things (unless they’re also a tachograph centre and are prepared to take the risk of tampering with the limiter).Not entirely correct my pedigree chum.
The speed limiter is set by adjusting the ECU settings, for this a dealer level diagnostics kit is required.
The tachograph doesn’t regulate the max speed.
It is not illegal for the dealers to remove the speed limiter, but it is illegal for you to run without the limiter properly set.
Duh - slaps forehead.
Of course. Why tamper with the digital tachograph, which is going to be traceable (as the vehicle unit retains details of the workshop card used to calibrate it) when you can tamper with the speed limiter that makes use of that speed signal in a way that isn’t traceable in a way admissible in a criminal prosecution.
cieranc:
When we calibrate tacho’s, the ‘speed run’ is done on the rollers at 40 mph, so the tachograph never gets near the limiter, the tacho calibrator doesn’t know wether the limiter works or not, cos they don’t run it up to it’s limiter.
All they do is certify that the tacho is accurate at recording the correct speed.
Those tachograph centres using a modified Roller Brake Tester approved for tachograph work rather than traditional tachograph centre rollers don’t even get close to 40mph.
cieranc:
So you can have the dealers remove/increase the limiter, have the tacho calibrated properly and the only person who’ll get in bother is the driver/operator if they get tugged.IIRC it’s a £120 graduated fixed penalty for not having the limiter properly set.
Without checking the relevant legislation, it is possible that a dealer knowingly setting the limiter higher than the mandatory maximum speed for that vehicle (or removing the limiter entirely) would be guilty of aiding and abetting the limiter offence. Proving their complicity would be nigh on impossible, however.
cieranc:
I can’t understand that, because they check the limiter on test. They plug a testbox into the truck to simulate the truck speeding up, then see where the limiter cuts in.To get one through test unchecked would be lucky, but all of them through 3 tests ■■?
About 12 trucks.
If they do plug in to test I would think it was through tacho-head. I think at the time their kit wouldn’t work with the style of tacho in the vehicle. I’m sure a tester said as well that it was check limiter installed (ie have sticker on door) and not a requirement to check it was working.
Harry Monk:
I’m just amazed that the company told a holiday relief agency driver to take a vehicle into a main dealer to have the cruise control adjusted.
the copmpany did not tell him to he did it himself twice i think he is trying to wind me up!!! it worked as i thought that if the truck was driven by you for about 48 weeks of the year then you should have a little say in how it is set up right or wrong.
tonypv12:
Harry Monk:
I’m just amazed that the company told a holiday relief agency driver to take a vehicle into a main dealer to have the cruise control adjusted.the copmpany did not tell him to he did it himself twice i think he is trying to wind me up!!! it worked as i thought that if the truck was driven by you for about 48 weeks of the year then you should have a little say in how it is set up right or wrong.
Wrong, the truck is not yours, it belongs to the company, you have no ‘say’ in how it is set up at all, just because you drive it 48 weeks of the year
When are you going to come down from your own little world and join the rest of the population in the real world
its set to 55 you drive at 52 and have an extra 3 mph in your pocket to get you out of trouble when needed…im sorry what was the problem again?