Hello, I drive with my 1.6 16V quite often fast on the highway. Does one of you know how long one can drive at the unit top speed (…with me Tacho 205 , without harming the engine ??? The tachometer is about at 6000 rpm. Can one drive permanently( 20-30min.) e.g. 160 km/h at approx. 5000 rpm. without risking damage ? Otherwise I am satisfied with the long-distance qualities of my Vectras despite (only) 101 hp. Many greetings to all Opel friends, St.