9+ MPG Class 8 5 Axel Trucks with Trailers

It's not very safe when a 65.1 mph truck is trying to pass a 65.0 mph truck hogging up both lanes on the interstate.

Trucks need a "Push to Pass" system like the Formula cars have

 

not talking this but i am talking about

when you drive 75mph comparing to 55mph is takes lot more distance to stop truck in emergency here is very often that you have traffic jam on highway on once .....so you have to stop truck in very short distance

also driving slower result in lower possibilities for blowing tire or similar

so here we have big discussions about to limit speed to 49.7mph .....

most companies drive this speed now

but problem will be if they will limit trucks to 49.7 this will increase fuel consumption because truck will be always in limit so this will be reducing throttle and than when speed drops , returning to 80kmh-by cruise control so this will cause worst economy than today

 

We see that Alot here with speed limiters, sometimes they just take miles to pass out that's why alot of motorways in Europe have no passing zones, a "push to pass" system would be a brilliant device if introduced, That's a great idea,

 

Something interesting; this week my truck wasn't busy do I took a friends scania r 620 6*4 to holland, it was a tandem or double drive unit, I ran with another of the companies trucks, an r620 6*2 with a lift/steer axle,both had auto gearboxes, we both had the same trailers and loads of machine parts, almost exactly the same weight too and same conditions, the 6*4 I was driving was 0.8 mpg's worse on fuel than the 6*2, I guess what I witnessed was frictional losses in action due to the extra machinery of the second drive axle, I am now definately sold on dice's route of micro polishing,

 

do you know axle ratio and tires on both of them

because we can see some long legged 620 single drive

but very hard to drive fast 6x4

truck

this also can be lot of difference

 

Both are running 1300 rpm @ 90 kph , both are heavy haulage spec, only the axle configuration is different,

 

And as long as your happy living in a truck it doesn't much matter if a given hour is in the bunk or the captains chair. Myself I'd rather get my 23-2500 miles for the week over with so I can be in my lazy-boy at home. 2-3 hours more at home rather than in a truck dodging 4 wheelers is a plus in my book thankyouverymuch.

 

I liked the way Pumpkins used to be set up with 63 mph on cruise and 65 foot to floor.

 

Absolute sense!

I understand the company drivers who like to drive hard and fast, I was like that too but when it's your truck and your paying for your own fuel, tyres and maintenance you will slow down and drive at a steady pace,