Date: Sat, 21 Oct 2006 09:04:08 +0100 From: "DervMan" <thedervmannospaml.com> Subject: Re: Gas Consumption
"SmaartAasSaabr" <smaartaassaabrnospaml.com> wrote in message news:1161391771.986000.244870nospam2000cwa.googlegroups.com... > > Junkyard Engineer wrote: >> Something weird with my '06 9-3 Aero sport combi. Driving at 100 Km/h >> gives >> around 12 l/100 Driving at 120 Km/h gives 11 l/100 and 130-140 average >> gives >> 10 l/100. Those numbers comes from 2 runs : one of around 1800 Km in 2 >> days >> and the 600 Km today. >> >> The fastest you go, the less gas you take. Crazy. At 140 Km Rpm is around >> 2300. That might explain things a bit. >> >> Any other explanation ? like my computer is crazy ? > > That is calculated milage from fillups or is it from the SID? > > In any case, Saab likes to drive around 130-150 not 100, this is a > performance car not a VW Beetle ;> > > I notice on the old 900 it does like 100 km/h for economy, but I go > 130-150 anyway. The V6 with the tall gearing like you have probably is > working more efficiently at such speed. But efficiency is not the same as fuel consumption. The vast majority of petrol engines are very inefficient at part throttle conditions, where part load here could be at 100 km/h or at 130 km/h. The less the throttle the less the efficiency, but they're still more economical at 100 km/h compared to 130 km/h. -- The DervMan www.dervman.com
