: Fuel Eco
04-15-2004, 03:27 AM
Hi there to one and all, My Wife has just got 41MPG out of my 9K CS LPT, on a run to London from Southampton return, 147mls, 2 mls of B roads with rounabouts, M27, M3, M25, M4. then 2 mls of B roads with speed humps, lights, etc.
On return she drove via A406, A307, A316, M3, M27, 2 mls of B roads with roundabouts.
she did not go over 70 and kept the revs below 2,500, in the green. I have pics but do not know how to show them here.
Anybody else had such a high fig. from a 9K??
04-15-2004, 04:16 AM
2.0 or 2.3?
Best I can get out of my 2.0t is 34.2 indicated off the display over a 140 mile motorway. Actually came out nearer 32 on actual.
I can average mixed driving at 31.2 though (again, on the display).
I would expect the 2.3 to be more economical than the 2.0 due to higher gearing, certainly is the case in the Aero.
04-15-2004, 04:17 AM
In fact looking at your info, must be a 2.3 because the 2.0 does ~3k rpm to do 70mph and you said she never exceeded 2k5.
04-15-2004, 04:32 AM
Did a real 35mpg in a 400 mile run from Edinburgh to Glasgow last week in the aero.
Speed varied from 60-90 , but I never broke 3000rpm (the last of the green!)
Mostly motorway, heavy traffic (occassionally stopping on Mway) and a bit of London at the end. Not bad, but I'd struggle to get more than 36 unless I was being stupidly cautious about the right foot.
04-15-2004, 09:09 AM
Sorry should have said She's a 2 Ltr CS LPT.
The most I have got out of her is 32 on a run but mostly around town, short dist. less then 10 mls is 21.
Since doing her magic bit of 41, by the way the first part of the trip southampton to London the wife got 42. She just will not let it go the She's better than me.
04-15-2004, 10:03 AM
Trying to get the lowest MPG is far more interesting I suspect. Change the rules and she is loosing big time.
04-15-2004, 10:36 AM
I've never got more than 35mpg out of my 2.0 LPT, even driving sedately on a run. However, I managed to get 47mpg from my Aero once on a moderate drive round the M25 when the traffic was flowing steadily at 50-60mph. I would often get over 40mpg from that car before I lowered the final drive ratio.
04-15-2004, 10:51 AM
40.3mpg from Bristol to Stratford & back on Tuesday.
43.6 from Wedmore to Bristol a few weeks ago.
All 'a' & 'b' roads.
9000 Anniversary 2.3 lpt http://www.saabscene.com/forum/images/smilies/thumbsup.gif
04-15-2004, 11:23 AM
Bacardi, if it's any consolation, I let my wife drive my car for 70 miles and she'd brought my 31.2 ave over a thousand miles down to 30.9 in just those 70 miles.
04-15-2004, 01:36 PM
Best I've seen is 99.9 mpg and 1117 miles to empty http://www.saabscene.com/forum/images/smilies/eek.gif That was in my old 9-5 2.3SE auto.
That was after I reset the system at the top of the St Gotthard last autumn and drove south downhill for many miles towards Italy http://www.saabscene.com/forum/images/smilies/fawlty.gif
The best I can get from my 2.3 LPT auto is 27 mpg. That was driving down to the Loire !
Average = 21. Just had it MOT'd and had v.good emmisions.
Also have an ECOtek fitted. Howeverr has made no difference.
Ay ideas what I should be getting.
04-15-2004, 03:30 PM
Read above for examples!
Somewhat better than that. Heavy right foot?
04-15-2004, 03:35 PM
Did 515 miles at the weekend and even though the car was hammered alot of the time i managed to get 34.4 mpg, which is not bad as the 2.0i is meant to be heavier on petrol than the turbo's.
04-15-2004, 04:51 PM
Over the same weekend (and much of the same roads) I did 1400 miles in my 2.0 LPT and only averaged about 30mpg. Then again, I was thrashing it a bit on the way up to Scotland, since we were running a bit behind. And I did have Mark (Type P) in the car all weekend
04-15-2004, 04:59 PM
Best I've had from my aero was a long trip to gatwick and back and I averaged just over 40mpg real, 44.1mpg displayed on a 600 mile tankful.
04-15-2004, 05:23 PM
Just did Liverpool and back (150 mile each way) in my 93 Aero. Average went up from 23.5 to 29 and then back down to 28.8 and I barely dropped below 90mph (on the private motorways) and then it was to sit in traffic. The old right foot went hard down on the return journey, coming over the Penines.
Quite respectable to say I out ran anything that tried.
04-15-2004, 06:22 PM
How did you change the ratio??
Interesting, cos I think my 5th could do with being taller
'96 2.3 CSE FPT
04-16-2004, 03:43 AM
Originally posted by max:
The best I can get from my 2.3 LPT auto is 27 mpg.
Average = 21.
Ay ideas what I should be getting. [/b]Ouch. That's bad. My average (also with a 2.3 LPT auto) is currently about 28 (mostly motorway). On a long run to France I'd expect slightly over 30. I would have to hammer it to death to get it down anywhere near 21mph, so I think you may have a problem somewhere.
(Mine has got an Abbott ECU which I think slightly improved fuel consumption, as well as transforming performance. But not by enough to explain the difference between 21 and 28 averages)
What is your average for non motorway work. aound town and back & fwds to work (15 miles through lanes for me)
The car then averages between 19-22. (english not USA)
Since my last service , 3000 miles ago the trip ometer is averaging 21.2. This includes motorway , aound town and back and forwards to work.
Of interest when cold under slight accelaration the gage averages 7-10 !
04-17-2004, 03:27 PM
Originally posted by max:
What is your average for non motorway work. aound town and back *& fwds to work (15 miles through lanes for me)
[/b]Dunno, my commute is nearly all motorway. Consumption gets slugged a bit at weekends to and from the supermarket etc, but I don't get anywhere near as low as you do. I think you've got something wrong somewhere.
04-17-2004, 03:57 PM
Out if interest, you haven't been leaving your car idling when it was frosty to clear the windows, as this knocks MPG for six, i noticed it dropping by 4-5 mpg when doing this on a frosty dayshift week. http://www.saabscene.com/forum/images/smilies/eek.gif
04-17-2004, 04:05 PM
Just to add to the debate with a non turbo 2.0 engined 9K. Yesterday on the 400 mile run from Alford, Aberdeenshire back to Glossop, we managed 40.6 mpg. This was sticking to speed limits and mainly dual carriageway/motorway driving.
I though this was pretty good for a 13 year old car.
04-18-2004, 11:20 AM
Still seems very low mileage to me. I average around 30mpg or just under, well over that on long m'way trips - and that's a 2.3T auto. (But flat country, I admit!)(Holland)
You say it's set to Imperial gallons, but the figures still sound more like US! Is the computer working as it should?
Took the car out for a long motorway journey. Kept at 70 ish. Whilst on M Way the average mileage is around 30+ mpg. However within 3 miles of comong off mway mpg goes down to 27. After poping into town and back (6 miles), mpg is 24. Therefore assume it will settle down to ave 21-22 again.
If this is not correct, where do you start. As I have said earlier it has passed the MOT without issue. Any bad fuel set up I assume would be identified.
Any ideas where to start.
04-18-2004, 06:07 PM
My perfectly OK 9.3 LPT auto does between 21 and 25, no more (and I don't suffer from leadfoot). Once had 31 on a motorway trip from Carlisle to Surrey, which was very much the exception. On a slight aside, many years ago a teacher at a local school used to bore colleagues rigid with boasts about mpg figures for his NSU Quickly (remember them?). Then day after day he came in to work, increasingly incredulous with the vast, never-ending mileage he was getting from his last tankfull. Unknown to him, his colleagues kept adding petrol to the bike when his back was turned
04-19-2004, 08:52 AM
Just to add some more data...........
My 94 CSE 2.0 EcoPower will return an indicated 34 - 36 MPG if I am very careful and don't go above 75.
I do suffer from a touch of lead-foot, and my daily commute of arount 200 miles (85% motorway, 15% A roads) usually returns an indicated 29 MPG. That's crusing at 90 - 100 where I can and includes the occasional A road blast. http://www.saabscene.com/forum/images/smilies/fawlty.gif
Not too bad for a baby with low gearing eh!!
From my crude calulations, the "real" MPG is very similar.
200 mile drive to and back from cardiff yesterday mostly motorway. I reset the fuel computer and was a bit easy not going beyond 75.. the fuel computer read 37.5 mpg which I thought was pretty decent. Mine is a 97 2.0 LPT Anniversary manual.
My 9000 2.0 LPT MY97 just did 740 km on a full tank, 68 ltr. thats 9 ltr. pr. 100 km. and the Computer said 8.5 ! This was approx 500 km on autobahn doing 130-170 Kmh and 240 km on short trips and city cykle! I still have winter tyres on, this will properly increase fuel consumption with 10%. I am very pleased with these figures!
04-19-2004, 10:59 AM
In my old 9000 CC 2.0i, I went from Chester to Truro with one rest stop. Two adults and holiday luggage on board in warm weather gave an indicated 48mpg at around 75mph all the way.
I've never had more than 32MPG out of my 9000 Aero (largely unmodified) - but I'll be replicating the Cornwall run in a few weeks time, and see how it compares.
04-20-2004, 03:34 AM
It's OK chaps, I have managed to get it down to a respectable 30 since I let my wife loose on her.
The Tax man and Shell were starting to ask questions about loss of earnings