Date: Sat, 21 Oct 2006 16:07:05 GMT From: krhodesnospamam.maine.rr.com (Kevin Rhodes) Subject: Re: Gas Consumption
In article <1161391771.986000.244870nospam2000cwa.googlegroups.com>, "SmaartAasSaabr" <smaartaassaabrnospaml.com> wrote: > >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. > I have found the same with my '00 9-5 V6t Wagon - I get better fuel economy at 70-75 than I do at 50-55. I suspect that good aerodynamics, and tall gearing are the reason. The throttle is open wider, the turbo is able to recover more energy from the exhaust etc.. Every car has a particular "sweet spot" where you get maximum economy vs. speed, modern Saabs seem to have it a little higher than most. Kevin Rhodes '00 9-5 SE v6t Wagon (20-29mpg) '92 C900CVT (25-33mpg)
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