B5 S4: Fuel Efficiency

2.7 V6 30v biturbo - 251bhp
2.7 V6 30v biturbo - 261bhp
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ZeroK66
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Post by ZeroK66 » Sun May 27, 2007 12:33 am

ZeroK66 wrote:ZeroK66

MTM Chip upgrade, Miltek Single, Gutted pre-cats & New MAF

RANGE ---------- FUEL ------ DIS av. mpg - DIS av. speed - DIS range - Refill - Stop/start - Urban - Motorway - High boost
200 miles ----- Optimax ---------- 18 -------------- 24 ---------- 0 miles --- 55l ------ 15% ----- 70% ----- 5% --------- 10%

Driving around town I see between 180 & 220 miles out of a tank - similar to that of my standard 2.8 Quattro I had previously.
On the motorway I see 350 miles out of a tank - better than my 2.8 Quattro I had previously.

All in all VERY happy with the economy I get out of the S4 given its performance. I have had cars with much lower BHP given similar/worse MPG!
I think it is important to update this... since having the MRC500 conversion done I now get 170-180 miles out of a tank around town and upto 240 out of a tank on the motorway keeping a constant 70MPH off boost driving like a saint. A drastic change vs my 330+ out of my MTM chip, but apparently that is the price for performance :cry:
Facelift Imola S4 | Cust K04's, Tubular Manifolds, 3" DPs->2.75" Catback | FMIC | PSS9 Coilovers + ARB's | Brembo 8-Pots | SS + DTS | 5??HP/475lbs/ft | 3.06S FATS on S4 Box

Sold: A4 (B5) 2.8 Quattro | Ivory Pearl
Melted: Corrado - IHI 1.8t: 343BHP

JDB
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Post by JDB » Mon Jun 11, 2007 9:45 am

ZeroK66 hope you have a company fuel card!!!

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SonicDeathMonkey
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Post by SonicDeathMonkey » Wed Aug 29, 2007 9:29 pm

I average 22.4 on my S4, but I drive it like it's stolen.

JDB
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Post by JDB » Tue Nov 13, 2007 4:11 pm

Yeah i get 21.8.

Ads4
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Post by Ads4 » Wed Nov 14, 2007 10:06 pm

Average at the mo is 17.8mpg...average speed 49mph...lot of motorway driving lately so getting around 230 miles on the display before the warning symbol comes on :D
Adam.

MRC B5 S4 Avant.

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CliveH
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Post by CliveH » Wed Nov 14, 2007 10:14 pm

Sounds like your DIS needs calibrating Adam - 230+ miles from a tank will be returning you over 19mpg...
Clive

S2 ABY coupe, S4 B5 saloon, S4 B6 avant
RS4 B7 phantom black saloon, mint, fully loaded, low mileage - FOR SALE!- http://www.rs246.com/index.php?name=PNp ... ic&t=88981
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GrahamS4
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Post by GrahamS4 » Sat Jan 26, 2008 10:45 am

They don't like stop start traffic do they.....

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Present: 2010 Ice silver B8 S4 s-tronic saloon (standard)
Past: 1998 Agate grey B5 S4 saloon (MRC tuned)
Hers: 2011 Volcano red 8P A3 Sportback 2.0 TDI 170 sport quattro

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rikrose
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Post by rikrose » Sat Jan 26, 2008 11:40 am

Ow. No. Best way to deal there, if possible is to literally only idle if you can, just using various gears. Standstill's always standstill, and we'll always consume more than a 1.8 there, but acellerating, we can consume even more. Idling in 6th though, is 20 miles per hour. You end up leaving lots of room, since you're not accelerating as fast as everyone else, but you're rarely more than idle. Helps a lot if the traffic is that stop-start but mostly moving.

I've got 470 miles off one tank. I followed lorries on the motorway for the entire, boring tank. It was safer than the traffic that was yoyoing between 70(ish) and 20(ish), with the sun behind so that I couldn't make out whether brake lights were lit. It's rather good for fuel economy.
Goodwood green RS4, previously owned by jeffw

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CliveH
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Post by CliveH » Sat Jan 26, 2008 1:39 pm

Gee Graham! Do you ever drive your S4...?

Still only 35k on the clock! :shock:
Clive

S2 ABY coupe, S4 B5 saloon, S4 B6 avant
RS4 B7 phantom black saloon, mint, fully loaded, low mileage - FOR SALE!- http://www.rs246.com/index.php?name=PNp ... ic&t=88981
S8 D2 facelift, RS6 C5 saloon, both gone but not forgotten

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GrahamS4
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Post by GrahamS4 » Sat Jan 26, 2008 5:58 pm

I've done about 6K in 19 months. 168 miles to a tank would be very bad it it wasn't about a months worth! Took it for a run today to blow the cob webs away and get the battery back over 12volts :D

On a decent run even with giving it the full beans I easily get 21-25mpg and nearer 30 on a motorway run but the stop start fairly short journeys I end up doing are bad. I managed to get the mpg up to 14's here, but it does sink to 13's sometimes.
Present: 2010 Ice silver B8 S4 s-tronic saloon (standard)
Past: 1998 Agate grey B5 S4 saloon (MRC tuned)
Hers: 2011 Volcano red 8P A3 Sportback 2.0 TDI 170 sport quattro

s4marsh
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Post by s4marsh » Mon May 25, 2009 10:57 pm

my average mpg was nearly always 19.8 give or take that includes highspeed runs+stop start near home, since i've had it remapped i average 23mpg thats with 15 psi of boost

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Re: B5 S4: Fuel Efficiency

Post by kingjggff » Fri Sep 23, 2011 10:04 am

I"d trust the clutch or pressure plate.But the Act clutch looks promising,I'll be looking into it closer as I have my new LW Fidanza flywheel just itching to go in.......good fine.
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