There is no way to stop using Nitrous when you decide to use Nitrous.
The nitrous has to be depleted for it to stop.
Using Nitrous does NOT help accumulate In-Game Currency. You mean driving on Nitrous Zones in Nitro Rush races that helps gain In-Game Currency.
What I meant, was that you can draft indefinitely on a NPC car by keeping "Autoplay ON". After sometime, the NPC car moves forward outside the draft zone. Firing a short burst, will put us back in the draft zone. Right now, firing the nitro overtakes the NPC car, and ends drafting since the entire Nitro bar gets used up in one go.
I can draft easy behind my opponents' cars without turning on Autoplay. You should turn off Autoplay and do the driving yourself as you have more control of your car.
If you have more control of your car, it'll make drafting easier for you.
