Guest esky Guests Posted 05/02/03 03:34 AM Share Posted 05/02/03 03:34 AM I did some fuel economy testing on my outback trip, 4 days and 3000km and 40deg days. I came up with a couple conclusions. Air con adds 1L per 100km.Optimax or ULP made no measurable difference to fuel consumption during normal highway driving.What are your experiences?esky Link to comment Share on other sites More sharing options...
HSE2 Member 322 Member For: 22y 6d Location: Tasmania Posted 05/02/03 03:37 AM Share Posted 05/02/03 03:37 AM agree completely about those points. Another good way to save is to find a drafting partner, a car that is travelling at the speed you want and looks as thought they are switched on enough not to hit debris on the road. Breaking that wall of air even slightly helps economy. Down side, stone chip. Noth worth it to me but I know paople who swear by it Link to comment Share on other sites More sharing options...
Cashie Donating Members 663 Member For: 21y 11m 17d Gender: Male Location: Perth Posted 05/02/03 03:48 AM Share Posted 05/02/03 03:48 AM Esky> What sort of fuel economy did you achieve? Link to comment Share on other sites More sharing options...
Guest esky Guests Posted 05/02/03 03:52 AM Share Posted 05/02/03 03:52 AM Esky> What sort of fuel economy did you achieve? I've got that info at home. But rough figures is the whole trip average was 11.? Max figure was 12.? And the best was 7.1 from Katoomba to Sydney Link to comment Share on other sites More sharing options...
Turbo6man Lifetime Members 4,084 Member For: 22y 3m 3d Gender: Male Location: South Coast NSW Posted 05/02/03 07:54 AM Share Posted 05/02/03 07:54 AM ... the best was 7.1 from Katoomba to Sydney Ooo yeah - don't you love those downhill runs??? LOLI would have expected better than elevens though for the country you were in.I agree with the air con, but I have definitely had economy gains using optimax - but that's in my T3 not the ZL turbo which runs mostly on LPG.BTW just for interest sake my T3 has just clocked over 30,000km and the overall average is 12.5l/100km (or 8km/litre) or 22.5 mpg. It is mostly country and outer suburban driving but has also quite a few trips into Sydney city and right across the city, east to west, north to south. Link to comment Share on other sites More sharing options...
HSE2 Member 322 Member For: 22y 6d Location: Tasmania Posted 05/02/03 11:18 PM Share Posted 05/02/03 11:18 PM That sounds like good economy from the T3! Is it a TS or a TE? Link to comment Share on other sites More sharing options...
Falchoon I see red Member 5,758 Member For: 22y 27d Location: nowhere in particular Posted 05/02/03 11:24 PM Share Posted 05/02/03 11:24 PM I was told that a car uses more fuel idling than driving (conservatively), does anyone know if this is true? In the 1500 odd km I've done in my XR6T the average economy is 13.4l/100km. Probably 60 -70 % highway driving. Always on PULP, mostly with A/C on. Link to comment Share on other sites More sharing options...
Antisocial Weird Member Member 1,347 Member For: 21y 11m 10d Location: ACT Posted 06/02/03 12:37 PM Share Posted 06/02/03 12:37 PM I have noticed on my XR6T SSS with the trip computer set to instant, that it uses less fuel coasing downhill in 3 rather than 4.Anybody else find that?Also if you reset the trip comp each tank the L/100 indicated is always over a litre more than what it actually is, ie fuel added divided by ks driven.Anybody else find that? Link to comment Share on other sites More sharing options...
Mondie Firm Member Donating Members 2,924 Member For: 22y 2m 12d Location: Adelaide Hills Posted 06/02/03 12:47 PM Share Posted 06/02/03 12:47 PM Also if you reset the trip comp each tank the L/100 indicated is always over a litre more than what it actually is, ie fuel added divided by ks driven.Anybody else find that? Yep, we are averaging around 12.8l/100 according to the computer but from measuring usage over a couple of tanks found that the computer overstates usage by about 0.4, so we are getting around 12.4l/100. Bloody good for the performance available and weight of the car. Link to comment Share on other sites More sharing options...
richdave SLOJAM, Gone but not forgotten Lifetime Members 1,841 Member For: 22y 3m 3d Gender: Male Location: Outer east - Melbourne Posted 06/02/03 01:41 PM Share Posted 06/02/03 01:41 PM I have noticed on my XR6T SSS with the trip computer set to instant, that it uses less fuel coasing downhill in 3 rather than 4. Heres a theory..what if the transmission has a Lock Up Torque Converter in 4th but not in 3rd Then perhaps the coasting revs in 4th would higher because there is no slippage, but in 3rd there would be slippage so the revs could be lower?So what's your tacho doing in 3rd Vs 4th?BTW - what I "know" about auto transmissions could be printed in bold on a postage stamp with plenty of room for a portrait of the queen... :lol: :lol: Link to comment Share on other sites More sharing options...
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