Colours of the Tachometer

[Regen7]

Hi I was wondering if there is a meaning to the blue and green colours on the tachometer. I'm aware that red is caution against over reving your engine (and potentially causing damage irl) but I've never seen these other colours.

[Mako]

From my understanding, green is where you want to keep the tach for best effeciency and lowest wear, and blue is the higher RPMs for when you're climbing a slope or pulling a very heavy trailer.

[Regen7]

Thanks, couldn't find anything about it anywhere.

[room217au]

The green area is where the engine produces the most torque, and also the 'top end' of the green range is where you optimally change gears.

[Nono54Fr]

. Green : as above, highest torque for lowest fuel consumption
. No color at all : best for slop and heavy trailer
. Blue : engine brake optimal performance (not retarder)
. Red : fuel burning

There is some topics about that but they are really old.

[room217au]

Higher revs in higher gears under load at lower speeds damages an engine. I dunno if ETS2 is that specific about engine wear, but in RL, "chugging" an engine will considerably reduce its working life.
Perhaps a little off topic, but I notice there's no 'turbo timers' on any of these engines. Turbos run really hot and really fast and need time to cool off before the engine is shut down.
I had a turbo's high-pressure oil line snap one time and I discovered what oil painting really means.

[Nono54Fr]

Originally posted by room217au:

I dunno if ETS2 is that specific about engine wear

Ostrich logic : i've never blown an engine because over-revving so there is no engine wear hence driving in the red zone has no more consequences than burning fuel.

[room217au]

Originally posted by Nono54Fr:

Originally posted by room217au:

I dunno if ETS2 is that specific about engine wear

Ostrich logic : i've never blown an engine because over-revving so there is no engine wear hence driving in the red zone has no more consequences than burning fuel.

I never drive that fast :D but it is odd that a simulator-type game wouldn't have that. The only damage to engines is from impact. I guess there are some things that have to be "left out".

[juggernaut]

Green is the powerband, where the engine is the most powerful while under load. Blue is when your shifting down or just starting up a hill gears 1-7 are your torque gears, 8-12 (depending on gear box) is your cruise and high speed gears for when your at speed. A transmission with a retarder when activating it the rear drive axles will engage a friction plate in the engine that is why you hear a whine when slowing. Futhermore the baily break also revs the engine in a lower gear to slow down using the engine if you shift to fast going down the engine will redline and you run a risk of blowing your manifold. But because this is a game that wont ever happen, enless they make it possible.

[Nono54Fr]

Originally posted by room217au:

I never drive that fast :D but it is odd that a simulator-type game wouldn't have that. The only damage to engines is from impact. I guess there are some things that have to be "left out".

Maybe they were left out because too complex as a whole, so many variables thus they just added some constants instead. The air tank simulation arrived later, the fuel simulation too and now the trailer brakes and the driver movement. These subsystems add their own values to the whole system or are deducted from the system. Susbsytem added = constants removed = more realism.

Originally posted by juggernaut:

Green is the powerband, where the engine is the most powerful while under load. Blue is when your shifting down or just starting up a hill gears 1-7 are your torque gears, 8-12 (depending on gear box) is your cruise and high speed gears for when your at speed. A transmission with a retarder when activating it the rear drive axles will engage a friction plate in the engine that is why you hear a whine when slowing. Futhermore the baily break also revs the engine in a lower gear to slow down using the engine if you shift to fast going down the engine will redline and you run a risk of blowing your manifold. But because this is a game that wont ever happen, enless they make it possible.

Blue is for optimal engine brake and there is no friction plate in a retarder.

http://www.volvotrucks.com/dealers-vtc/en-gb/VTBC-London/promotions/toptips/Pages/economicaldrivingtips.aspx

[juggernaut]

Ah, well thats somthing new. However the clutch for shifting has a friction plate but everyone knows that

[Nono54Fr]

Originally posted by juggernaut:

Ah, well thats somthing new. However the clutch for shifting has a friction plate but everyone knows that

Let's be thorough here, that friction plate for shifting is a part of the clutch, it's not for braking.

[room217au]

Originally posted by Nono54Fr:

Originally posted by juggernaut:

Ah, well thats somthing new. However the clutch for shifting has a friction plate but everyone knows that

Let's be thorough here, that friction plate for shifting is a part of the clutch, it's not for braking.

"gears to go, brakes to slow"

[juggernaut]

However gears can be used to slow....You ask how? When a semi is going down a hill just before he starts the decent hey shifts down into maby 4-5 so the engine is a break meaning the engine will only rev as fast as it would in 4-5 and not 12th. And because your in 4-5 the drive axle will only spin as fast.(see CDL practice test) http://cdltest.co/