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#1
6th July 2009, 10:09 PM
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Mpg
Hi
I have a A8 2.8ltr but would like the 4.2 but i have an issue with economy as i have read that the 4.2 is just as economical as the 2.8ltr yet some say this is not possible, so i am now putting the question to the ones that know, that is the forum members as you are the true judge being the owners of the aforementioned vehicles. Many thanks for all replies 
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#2
6th July 2009, 10:14 PM
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Quote:
For what the 2.8 saves in cubes, it chews up in revving harder to move the car about, so its false economy really..... But - Pre 2001, the 2.8 was only front wheel drive, where the 4.2 was always quattro and Quattro does inevitably add a little bit of drag, but its worth it... I'd expect 30-35 from a 2.8 on a long run, and 27-30 from a 4.2 A8. The S8 will perform much worse though, 20-24mpg. The 4.2 is worth it, as you get the quattro, twin pane glass and generally a much higher spec car overall.... plus the extra 103bhp of course :-)
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For parts enquiries and Forum User Administration please contact customer services directly, not me  - enquiry@a8parts.co.uk, www.a8parts.co.uk, or call 01642 783537The Daily Town Car - 2023 Tesla Model Y Performance. Black with Black. Giant ipad screen, huge sunroof, 4 wheel drive, Tow bar, lots of ooomph and made in China, so actually built properly unlike the Californian ones. The Family Wagon - 2018 Tesla Model X. Black, 7 Seats, Towbar, Homelink, Enhanced Auto pilot with Summon and self park, Heated front seats, CCS Charger upgrade, MCU2 Upgrade, Falconwing Doors, Self opening / closing doors, Netflix, Spotify, toys, Air suspension, alcantara roof + lots of other stuff...... The 17 year old Driver Wagon 2015 Skoda Citigo Monte Carlo. Alloys, Power steering, Aircon, Leccy windows, Sat Nav, bluetooth, central locking, cup holders, 59 whole bhp. Million times better than my first car. Well jealous..... The First 20 Audis: 2001 D2 4.2 QS Silver, 1997 D2 S8 Silver, 1999 D2 4.2 Silver, 2002 D2 S8 Dolphin Grey, 2003 C5 RS6 Blue, 1998 D2 S8 Black, 2000 D2 4.2 QS/S8 Ming Blue, 2003 D3 4.2 Ming Blue, 2005 B7 S4 Blue, 2006 D3 3.0 Tdi Black, 1999 D2 4.2 Silver, 2003 D3 4.2 LPG Crystal Blue, 2000 D2 S8 Silver, 2007 3.0 Tdi Q7 Black, 2009 B8 S4 Black, 1998 D2 S8 Agate Grey, 2006 D3 4.2 Tdi Blue, 2006 D3 S8, 2007 Q7 3.0 Tdi, 2006 C6 S6, The Second 20 Audis: 2011 A7 Sline, 2001 A2 1.4 Tdi Black, 2002 A2 1.4 Tdi Silver, 2006 A8 4.2 Tdi Blue, 2007 4.2 Tdi Q7, 2006 S4 Cab Silver, 2010 RS6 Saloon Black  , 2007 TT Roadster, 2010 A8 D4 4.2 Silver, 2006 C6 A6 2.7 Tdi Quattro, 2000 D2 4.2 QS/S8 Ming Blue (again), 2008 Q7 4.2 Black, 2009 C6 RS6 Saloon Daytona Grey, 2001 Fully Loaded A2 Tdi, 2006 Avant S6 Black, 2007 VW Caravelle Exec Black (almost an Audi) 2009 TT Roadster Daytona, 2015 Q7 4.2 tdi lava grey, 2002 GmbH D2 demonstrator, 2006 D3 A8 LWB 4.2 Tdi Black Most Recent Audis: 2001 A2 1.4 Tdi Black, 2007 4.2 FSi Q7 ABT Blue, 2016 S5 Coupe Launch model, 2004 S4 B6 Cabriolet, 2016 Q7 Sline White, 2006 Q7 4.2 FSi Black, 2012 Q7 Sline+ 4.2Tdi White, 2008 Blue Audi S8 Everything Else 1989 Subaru Justy, 1986 Vauxhall Cartlton 2.0 GL, 1985 Vauxhall Carlton 2.2 CDi, 1987 Ford Sierra XR4x4, 1983 Vauxhall Senator, 1985 Vauxhall Senator 3.0i, 1997 Polo Saloon, 1997 Peugeot 306 1.9 TDi, Ford Sierra Sapphire 2000E, 1990 Subaru Justy, 2000 Subaru Impreza, 2000 Subaru Impreza RB5, 1993 Range Rover LSE, 2005 VW Bora, 2003 Skoda Superb, 2003 VW Passat V6 4 Motion, 1996 Peugeot 106, 2000 Range Rover 4.0, 2019 Tesla Model 3 Performance
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#3
6th July 2009, 11:18 PM
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I am starting to learn how to drive my 4.2 '99 A8 Sport and have been trying to take it easy. The best I can get at the moment is 22.6 mpg. I have had it about 4 months now and for the first few month I was only getting about 20mpg (I was certainly using to much right foot and it took me a while to settle down to the right sensitivity level and get used to being back in an auto)
Should I be seeing better results from my 4.2 Sport?
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A8 Sport '99 4.2 V8 STOLEN 19/01/12 '92 Mini Mayfair (Sold) '80 Mini shell + V5 (for Sale) '72 Mini Pick up Supercharged 1380 '03 S4 Avant
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#4
7th July 2009, 08:23 AM
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Depends how much town driving you're doing...
If I'm just nipping in and out to the office, I tend to get very low 20's, on a motorway run, getting about 30 (at 80kph) in both the D2 and D3.
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2010 Jag XF 3.0D Portfolio S I know.. I know.. 
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#5
7th July 2009, 09:55 AM
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Never had more than 22.6 even on a long run!
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A8 Sport '99 4.2 V8 STOLEN 19/01/12 '92 Mini Mayfair (Sold) '80 Mini shell + V5 (for Sale) '72 Mini Pick up Supercharged 1380 '03 S4 Avant
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#6
7th July 2009, 09:56 AM
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Quote:
 I get ~ 17/8 on LPG sat at ~ 85 ish on motorways and 'using' teh acceleration as it was designed to be used.
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#7
7th July 2009, 10:32 AM
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Quote:
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2009 Audi RS 6 Saloon V10 - 420mm Ceramics, Keyless, Soft Close, Adaptive Cruise, Glass Sunroof, Blinds, Twin Pane & UV, Freeview & DAB, High Beam Assist, MTM bits, Audi Exclusive Bits, MRC, Milltek, GYEF1 ASY2's, Bluetooth streaming music to AMI mod - 753 PS/1021 NM 2016 Audi S3 Saloon, Sepang, S-Tronic - B&O, Tech Pack etc... Company Car 1995 Audi A8 4.2 V8 quattro Sport - Bose, Solar, Blinds
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#8
7th July 2009, 11:18 AM
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nope! errrrrm how do you reset it? :S
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A8 Sport '99 4.2 V8 STOLEN 19/01/12 '92 Mini Mayfair (Sold) '80 Mini shell + V5 (for Sale) '72 Mini Pick up Supercharged 1380 '03 S4 Avant
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#9
7th July 2009, 11:38 AM
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On the wiper stalk, there is a button on the right hand side of it, push that button for about 3 seconds untill it resets
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2009 Audi RS 6 Saloon V10 - 420mm Ceramics, Keyless, Soft Close, Adaptive Cruise, Glass Sunroof, Blinds, Twin Pane & UV, Freeview & DAB, High Beam Assist, MTM bits, Audi Exclusive Bits, MRC, Milltek, GYEF1 ASY2's, Bluetooth streaming music to AMI mod - 753 PS/1021 NM 2016 Audi S3 Saloon, Sepang, S-Tronic - B&O, Tech Pack etc... Company Car 1995 Audi A8 4.2 V8 quattro Sport - Bose, Solar, Blinds
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#10
7th July 2009, 12:08 PM
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Right, got you.... Hold down 3 seconds. No probs. I will reset it before my trip away this weekend and we can analyze the results then!
Edited because of very embarrassing, stupid spelling mistake!
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A8 Sport '99 4.2 V8 STOLEN 19/01/12 '92 Mini Mayfair (Sold) '80 Mini shell + V5 (for Sale) '72 Mini Pick up Supercharged 1380 '03 S4 Avant Last edited by E.L.M.O; 7th July 2009 at 09:31 PM.
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