I wouldn’t lose sleep over it.
merc0447:
Can’t get a straight answer and nowadays only see our driver trainers once in a blue moon.
In the Manual is said how much torque by which RPM
and 90% is 10% less
Means good,as you cant stay on Ideal RPM all the time
Think you just driving empty the Motorway up and down 
Conor:
lee mc67:
merc0447:
Can’t get a straight answer and nowadays only see our driver trainers once in a blue moon.
When you use 90% torque you are using as much power output that the engine can deliver. After that you are damaging the engine. When training in SAFED you keep the needle in the green, 90% Torque is pushing the power output further for example into the far side of the yellow band.
What utter poppycock. 100% torque is the maximum power output that the engine can deliver. You do not damage the engine by putting out more than 90% torque. You might use more fuel and it might not be a good idea to do it for prolonged periods but during normal driving using 100% of the torque does not damage an engine.
You do not push the torque higher by going into the yellow band and in fact it has been dropping long before you get there. In fact, maximum torque on most wagon engines occurs low in the green band, usually at the bottom end which is where you want it as it is torque that gets you moving. Here is the road test for a Scania R420. Peak torque occurs from 1100 to 1350RPM.
roadtransport.com/ROADTESTSR … -r420.html
If what you say is what you were taught then the people teaching you are clueless halfwits.
You misunderstand what was meant, look into power outputs of engines on the whole. I agree that the most power is used at the lower end but when accelerating there comes a point when the engine is doing nothing but revving and giving no more power. When the engine is at this point, any further you are damaging the engine. My point is that if the engine is pushed beyond 90% of this then you WILL damage the engine. Half wits or no half wits it’s a fact. It’s not poppycock it’s fact.