Hello Saabgemeinde and experts of the engines Beautiful and funny phenomenon! Recently I could ride my 9000 he 2,3 lt. 170 hp again on the train, since absolutely nothing was going on. Empty highway as far as the eye could see. Fully flat track, no wind and the Saab runs now according to Tacho 245 km/h. Before was at 235 to 240 easy mountain descent. How this? Does anyone have an explanation for this? For some information I would be grateful. PS. No other tires or other fuel, k a workshop stay. Last change on the engine was oil change with previous LM MC and conversion to full-syntetic oil. Greeting