Just wondering if any drivers out there could share their real world MPGs for V8’s and double drives…
Ta!
Waste of time unless you know how they drive. I’ve done runs with another driver on the same route and I’ve used 50 litres less than he did on a trip from Hull to London and back both setting off at the same time with the same load on the same route with the same trucks.
Conor:
Waste of time unless you know how they drive. I’ve done runs with another driver on the same route and I’ve used 50 litres less than he did on a trip from Hull to London and back both setting off at the same time with the same load on the same route with the same trucks.
I figure the wrong way is to drive em like you stole em.
Conor:
Waste of time unless you know how they drive. I’ve done runs with another driver on the same route and I’ve used 50 litres less than he did on a trip from Hull to London and back both setting off at the same time with the same load on the same route with the same trucks.
My hero !!! 
Conor:
Waste of time unless you know how they drive. I’ve done runs with another driver on the same route and I’ve used 50 litres less than he did on a trip from Hull to London and back both setting off at the same time with the same load on the same route with the same trucks.
Doesnt mean a lot unless you know those two trucks are equal.Overall mileage, oil grade, injection timing, injection efficiency, turbo wear, tyres ect. These would all have to be absolutely identical to make a fair comparison.
AndrewG:
Conor:
Waste of time unless you know how they drive. I’ve done runs with another driver on the same route and I’ve used 50 litres less than he did on a trip from Hull to London and back both setting off at the same time with the same load on the same route with the same trucks.Doesnt mean a lot unless you know those two trucks are equal.Overall mileage, oil grade, injection timing, injection efficiency, turbo wear, tyres ect. These would all have to be absolutely identical to make a fair comparison.
Don’t you dare question Conor. The man is a legend.
I love threads about fuel economy/useage. They often include really interesting bits of advice and information, as well as shed loads of nonsense, rumours and odd anecdotal evidence that always puts the experts down.
Of course being an expert myself I am in a position to know which is which.
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When i had a V8 R730 it sat between 7.5 and 8 mpg.That was a tag axle but i do know that some double drive V8 are doing 5-6 mpg on landfill work.
I get great fuel mileage, then again I drive at 52 normally unless its foot down Friday.
Conor:
Waste of time unless you know how they drive. I’ve done runs with another driver on the same route and I’ve used 50 litres less than he did on a trip from Hull to London and back both setting off at the same time with the same load on the same route with the same trucks.
Of course you did, you would have to be the best super duper driver there ever was.
A.
Thanks for to all the fun so far.
Basically, I’m trying to weigh up the best fit for my second wagon. Realistically I think I’m ruling out double drive as I only expect to be off-road for roughly 20% of any journey. Not landfill work either.
So in regards to traction, I’m leaning towards keeping it simple with a tag.
As for the V8, it’s the torque I’d be after. But if the MPG is markedly different to a 480/500 hp engine, I’d have to give it a miss.
el_presidente:
Thanks for to all the fun so far.Basically, I’m trying to weigh up the best fit for my second wagon. Realistically I think I’m ruling out double drive as I only expect to be off-road for roughly 20% of any journey. Not landfill work either.
So in regards to traction, I’m leaning towards keeping it simple with a tag.
As for the V8, it’s the torque I’d be after. But if the MPG is markedly different to a 480/500 hp engine, I’d have to give it a miss.
A couple of generalisations Id suggest, double drives weigh a bit more and have more drive train losses associated with them, so unless theyre necessary youre better off avoiding them. As you say keep it simple. Is this a second vehicle and driver youre putting on the road?
If so the largest influence on economy is what sits behind the steering wheel. I reckon we can all agree that bad driving will produce poor economy from even a good truck. Seems to me that a good driver will get good figures from a big engined truck, but a poor driver can get worse figures from a big engined truck than from a more modest engine. A bigger engine will give a greater range of fuel returns depending on the driver.
If its going to be driven by you (or a driver youre sure is a good un), and youre disciplined with your right boot and thoughtful about which gear you`re in then a bigger engine may be more economical.
Franglais:
el_presidente:
Thanks for to all the fun so far.Basically, I’m trying to weigh up the best fit for my second wagon. Realistically I think I’m ruling out double drive as I only expect to be off-road for roughly 20% of any journey. Not landfill work either.
So in regards to traction, I’m leaning towards keeping it simple with a tag.
As for the V8, it’s the torque I’d be after. But if the MPG is markedly different to a 480/500 hp engine, I’d have to give it a miss.
A couple of generalisations I
d suggest, double drives weigh a bit more and have more drive train losses associated with them, so unless theyre necessary youre better off avoiding them. As you say keep it simple. Is this a second vehicle and driver youre putting on the road?
If so the largest influence on economy is what sits behind the steering wheel. I reckon we can all agree that bad driving will produce poor economy from even a good truck. Seems to me that a good driver will get good figures from a big engined truck, but a poor driver can get worse figures from a big engined truck than from a more modest engine. A bigger engine will give a greater range of fuel returns depending on the driver.
If its going to be driven by you (or a driver youre sure is a goodun), and youre disciplined with your right boot and thoughtful about which gear you`re in then a bigger engine may be more economical.
Definitely my drive. I’m very much a smooth green band man.
What sort of work will you be doing, tag axles are better for off road action than midlifts IMHO.
My steed is a standard fleet spec 460 Renault T cab, albeit now needs replacing due to an adventurous ‘in cab ■■■’ mishap.
About 9 - 9.5mpg, 70% of the time 40tonne +.
Wouldn’t mind a V8 throbber though.
Again making a generalisation, if the fuel bill is coming out of your pocket, not off the bosss credit card then any truck will be economical ! A bigger engine may give you the option to pay a little more out on fuel to get an extra load done? It may mean a round trip done in a day instead of a day n a bit, so 5 trips in 5 days instead of 4. As the boss you can do the arithmetic and work out whats best. A big engine should hold a higher gear on a slope and be more efficient at the same road speed as a smaller one, but change down, go up quicker and itll drink more. Its down to driving technique.
The best test though is to try and get a good long drive in whatever trucks youre considering. Running any candidates in real world situations is far better than any theory, as Im sure you`re aware.
Franglais:
Again making a generalisation, if the fuel bill is coming out of your pocket, not off the bosss credit card then any truck will be economical ! A bigger engine may give you the option to pay a little more out on fuel to get an extra load done? It may mean a round trip done in a day instead of adayna bit, so 5 trips in 5 days instead of 4. As the boss you can do the arithmetic and work out whats best. A big engine should hold a higher gear on a slope and be more efficient at the same road speed as a smaller one, but change down, go up quicker and itll drink more. Its down to driving technique.
The best test though is to try and get a good long drive in whatever trucks youre considering. Running any candidates in real world situations is far better than any theory, as Im sure you`re aware.
^
This
Im reckoning the 700hp in the pipeline will be just as if not more economical than my current 500 (570 remap) at 44t on the gradients a down change is needed, the new one should be able to accelerate uphill if anything…
V8 s we have average 8mpg the Volvo 500’s are better 2 out of the 3 are still being run in but are averaging 8.4 out of the starting blocks the 620s go up hill better than the 580s