MPG low?

[OptimusPrime]

Hi, I've been wondering about this for a little while now. I have a 2003, 93, 2.0t and I feel the MPG im getting is too low. I use the MPG function on the SID and also run an app on my computer. The app takes in the miles done since the last fuel stop, the number of ltrs put in and the cost per Ltr.

I mainly do a 32 mile round trip to work, it's a mixture of town and A road. When my partner uses it she drives a 10 mile round trip, on town / country roads. Our pottering about is on these town / country roads too. When you mix this all up between fills I'm getting around 300 miles per tank. The SID says I'm getting around 25 / 26 MPG. The computer app gives me around 23mpg as the average and 24. something on the last fill. I feel that if I do all motorway then I'd get around 100 miles from the tank.

Now I know it's not a diesel but I'd have expected to get nearer 30 mpg, especially as those with either an Aero etc quote they get better milage than I'm getting. Now I know from driving an old 900T that you could avoid the turbo by shifting up before the needle got to the red. As this car is a 't' icant do that and was wondering if that was the cause. If not, what is? Oh course if this is 'normal' then I'll try and stop worrying about it and just get on with it.

[sgould]

I dnt think you are using an excessive amount of fuel.  We have a 1.8t vector of the same age, and the same engine, but it's an auto.  On a daily commute of just under 3 miles each way, my wife would get 16 mpg!!  The traffic could be quite difficult with several queues and a final bit with seven ramps in a tight multi storey. So not typical.  A manual transmission should be more economical around town.

She has now retired and  the local mileage has improved to around 22 mpg on the SID.

With lock-up the auto is similar to the manual on a run.  We get 35 mpg when I drive. 38mpg when she drives.  It has the Hirsch 195hp upgrade but that didn't seem to affect the fuel consumption.

As a final comment, she used to do the same commute in a 2.3 manual gearbox Ford Galaxy.  That averaged 9 mpg.    and we never got more than 25 mpg on a run.

[sgould]

Forgot to say.  Your dealer can check the consumption against expected by driving with the Tech 2 computer connected.  On my 9-5 they confirmed high consumption.  New lambda sensors cured that, but I'm not sure that the fuel saving ever covered the cost of the lambdas!!

[OptimusPrime]

Thanks sgould, I forgot to mention mine is also an auto. I'd seen a thread today about a 2003 93 Aero with a fuel sender problem. They were commenting on how many MPG they got and the more of these accounts I've read the more ive thought my fuel use was high. A friend with an auto 728i BMW, P reg I think gets about the same. That just seems wrong for an engine that size on a car that heavy. Although I suspect the story is different around town.

As an aside I understood the tank was a 58Ltr. I've filled up on numerous occasions now, with mikes shown till empty, and have put 59 or possibly even 60ltrs in. That probably makes the MPG even worse. I wouldn't mind if I drove like the wind, but I try and be 'sensible' as it costs so much. I use the cruise control a lot as it seems to keep the boost gauge lower moreof the time.

[OptimusPrime]

Forgot to mention the 93 review above talks of a 'combined' reading of 35mpg displaying. I noticed it's a manual, and I think an Aero. Does auto make THAT much of a difference?

[Saabman]

I'm getting around 25mpg out of my Aero around town 

[philmots]

Pottering about in my manual 2.8T 16 mile round trip commute I'm getting 27mpg. That includes some heavy throttle for overtaking.

If I'm using a lot of right foot it drops to 23mpg.

[faceplant]

24.9 MPG   2006 93 Aero.     Whatmpg.co.uk say combined is 34.9 (was morgan freeman driving miss daisy for this test)


This is the same as (source:   http://whatmpg.co.uk/Audi%20MPG%20Information.html  )

Audi A4 3.0 Quattro Sport 25.9
Audi S4 Avant 24.8
Audi Q7 4.2 TDI 25.5

Lets face it, Saab's have pretty crap fuel consumption.

[OptimusPrime]

Thanks all. I'll get it checked when it next goes in, however as stated the cost of repair maybe far more than the fuel savings. Can anyone shed any light on exactly how badly the fuel consumption differs between the manual transmission and the auto one?  Thanks. Optimus

[Saabman]

The wife was getting 22mpg from an auto 2.0t Vector driven like a woman, compared to my tuned 2.0 Aero 25mpg driven like I've stolen it 

[cliffhanger]

Presumably Saab's auto box is none too clever then? never had less than 35mpg out of my 150 TiD - that was winter comuting. Towing can get near 30 mpg. (These are real figs, not SID propaganda. Add another 3 or 4mpg  for SID claims).