S4 Cabriolet Fuel Consumption

Post by **HYFR** » Fri May 01, 2009 9:06 am

i recon its about 3-5mpg less than I was getting in the S4 saloon, which itself was a couple of mpg less than the RS6 . . .

anyone got any theories as to why its so crap?!

aside from having a V8 lump up front

Post by **Pete.S** » Fri May 01, 2009 10:19 am

Heavier?

Did you really get more out of an RS6 than the S4 saloon? That surprises me

Post by **no_RS** » Fri May 01, 2009 10:45 am

The RS6 (avant) is approx 520kg heavier than the S4 cab but has a third more torque so on a cruise it may be a bit more economical but it's probably down to enjoying the milltek exhaust note

Post by **HYFR** » Fri May 01, 2009 2:05 pm

yes the RS 6 was / is more economical than both S4's. . . mine was a saloon, which weighed less than the avant, i also found out after id sold it, it was mapped ! so adding to the economy

on a motorway cruise control at 70mph I could get 30mpg everytime on the RS 6, on the S4 saloon best I could get was 27mpg. . . .I havent tried yet on the cab, but think it'll be 26mpg

but its around town the cab is terrible

dont get me wrong, its all relative and mpg is not a major concern, otherwise i'd have got a diesel. . .

was just wondering why it was worse than the other two, and I think it must be down to weight !

I'd better lay off the pies !

Post by **Pete.S** » Fri May 01, 2009 11:11 pm

Yeah must be the added weight in the cab

That's interesting on the RS6, I'm sure the combined mpg was listed as below 20 when they came out, S4 21-ish, concur on getting 27 on a very steady NSL m/way run

Post by **HYFR** » Mon May 04, 2009 9:42 pm

its ok, not so bad after all, managed 28mpg over 200mile round trip, M & A roads

happy enough with that

Though I recon its <5mpg when the roof's down with the Milltek !!

Post by **HYFR** » Sat May 09, 2009 8:51 pm

got 30mpg on a LDNto Brum trip at 70mph cruise control !!

happy with that

Post by **HYFR** » Sat May 16, 2009 2:54 pm

interesting, just looking at the official stats, the auto gets better fuel consumption vs the manual

Fuel consumption: urban/extra urban/overall, mpg 14.2 / 27.4 / 20.5 (manual) vs 15.5 / 30.0 / 22.4 (auto)

Post by **marctwo** » Thu May 21, 2009 12:46 pm

davidkoulakis wrote:interesting, just looking at the official stats, the auto gets better fuel consumption vs the manual

Fuel consumption: urban/extra urban/overall, mpg 14.2 / 27.4 / 20.5 (manual) vs 15.5 / 30.0 / 22.4 (auto)

This is due to longer gear ratios on the Tiptronic.

Post by **marctwo** » Tue Jun 16, 2009 11:23 am

I managed 29mpg on a long M1 / M25 trip yesterday. Mostly with cruise set to 70mph. This went down to 27mpg for the whole trip once I hit London traffic.

I think MrsTwo could crack 30mpg.

Post by **HYFR** » Tue Jun 16, 2009 4:49 pm

I had the S4 cab for about 2k miles and averaged 22.0mpg. . . . had my new RS 6 for 1.1k miles so far and am averaging 21.9mpg

Not alot in it for extra 150bhp

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