The CAT scales at the Pilot at exit 39 on I-85 in Charlotte, NC that is about 2 miles from Snider Tire was only 160 lbs difference weighed with in 2 hours before and after tires were swapped. Only had to pay $1 dollar for the re-weigh.
I heard around 400 lbs for the swap from 8 to 4.
200 lbs would have been real close if I had went with the smaller 445/50R22.5s instead of the heavier 455/55R22.5s.
9+ MPG Class 8 5 Axel Trucks with Trailers
Discussion in 'Trucks [ Eighteen Wheelers ]' started by Dice1, Sep 15, 2011.
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Dice has made some modifications that puts his fuel return figures comparable to most trucks here so it is quite possible to be as good as anything here although scania's modern engine and gearboxes have taken a leap forward again, new engines are low revving high torque engines, for instance the 730 hp has the sweet spot at only 1000 rpm and giving 11 mpg euro( roughly 9.4 us)@ 97,000lbs, not bad from such a big engine ( I wonder what mr Haney could do with it? 13 mpg? 1400 hp???) their gear boxes too can change gear in a millisecond and is so smooth u can't feel the changes .
The only big difference I see is safety, here it's disc brakes with ebs, this can stop a fully loaded truck as quick as an average family car ( shorter when empty) also they don't skid or jacknife in the wet, they are also Alot lighter than drums, retarders give unmatched downhill speed control which is integrated into the cruise control and the gearbox ( select your speed and the truck stays at that speed up or downhill without driver intervention, active cruise control also matches the speed of traffic automatically, traffic stops, you stop! All automatic) -
It all agrees, the problem is, that 730 wasn't made to last longer than 4-5 years, your out of leasing, and they want you to take another one. You can keep the truck, but you can't be sure, that it will be problem-free. That auto transmission is great, when it's working, but may be pain in the ### to fix it. You can drive at 1000 RPM, but as you can imagine, it's not the best idea, if you wan't to drive it forever.
There's a great drop in reliability. My mate owns a fleet of around 35 Dafs. They mostly drive to Russia, so the Euro norm, doesn't matter that much. Old machines could (till Euro3) easily do 1 milion miles, and then they needed fist overhaul. Newest 105 hardly reach 600 000 kilometers! Which is only around 375 000 miles. You Americans were lucky enough to get newer generation of Paccar MX engine, first models had great oil consumption. How much ? Even around 12 liters, for every 1.5-2 thousand kilometers!
But I guess that is all caused by stupid ecological ########, and it's the same thing in America.
We still don't use Euro6 (EPA 2010) engines, and having EGR, SCR and DPF at same time may be interesting ... -
i agree with most of what did you write
but potential savings with extra fast transmission can save you so much money that you will not be interesting does it can make 20% more millage or less
you will sold it already
also lower internal friction can maybe even improve engine life
personally i would not chose 730 even if i need it
it is 90kg heavier common rail is still new thing for our bad fuel
it require only full synthetic oil and need 10L more of it
if you spec very long driveline ( for example 2.92 overdrive and 315/70) average 620 ( 3.4 overdrive 315/70) can outperform it in hills
it is also big money in game for 730
as for long transmission
in my country we have very flat and very hilly terrain so you need fast and slow truck in one
also here lot of operators drive off highway
so people buy everything from 3.08+315/70(1450rpm at 89) to 2.92 overdrive and 315/70(<1100rpm at 89)
it is hard to get right specification
now r500 with 2.59diff and 315/70 get best possible fuel economy in heavy highway operation 33.4L with 40t loaded in both direction
usually competition get up to 40L on same route
but engine struggle off highway -
(r780 2.71:1 direct drive gearbox and 295/80tires)
other one
rb662+r660 3.42:1 overdrive gearbox and same tires)
twins on trailer and tag
this is most accurate comparison so far (usually hard to find same specs same condition route and weight...)
weight benefit is 400kg ~900lbs because it has twin usually it is more than 600kg
edit: and both were rated at 90000kgLast edited: Dec 26, 2011
Scania man Thanks this. -
There's simply no way, you can make money in transport by buying cheapest stuff.
And to be honest, when fuel consumption is your biggest concern, think about changing job.
I know it my sound harsh for you European fellas (I'm Euro guy too) but just think about it. And see how much money you could get, by having a Scania 730, which lasts as much, as old 3 serie did. -
it is no longer possible to have euro4 here and be competitive
i have 1987 mercedes (4axle tipper)
but we did only local routes in city where new and old trucks have similar fuel economy but on longer routes where fuel is 60-70% transport price
driving truck with 40L/100km is not same as having one with 30....
it is true than no new truck will last same as old ones but old are almost extinct all are worn out and running them can cost pretty much
my mercedes is almost all stock
clutch is replaced 2years ago
last winter rear differential was broke because of heavy duty work with lot of mud but only smaller brakedown but there is no too much similar trucks -
The Euro 6 norm will come in 2014, you think it will change anything ? There's no Euro7 norm coming, so we should be able, to keep them forever.
I see E5 trucks for sale now, and you can still use them.
Why is that ? That's becouse they started breaking down, even before newer Euro norm came. -
but i am talking that keeping e2 norm is no longer possible
that trucks that were more quality than todays are no longer in shape
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