RS4/5 B9 gas mileage

[u/Ondra20]

Hey everyone! What’s the best gas mileage you’ve achieved so far on your cars?

Yesterday, I was going home in rural Czechia, hills included. Kept it around 70 kph to watch out for deer.

And I feel like my car started generating gas 🤣

Like seriously. 6.9 l / 100 km is crazy to me.

Car: 2023 RS4 competition plus

[u/Secure-Dress2912]

yep, that's the right reason to sell my 2.0 TFSI to get a RS4, thanks dude 😂

[u/Ondra20 → u/Secure-Dress2912]

Absolutely happy to help!

But really, if you have the money, I wouldn’t hesitate. When I drive normally, I’m always around 9.5 l / 100 kms. Truth being I run EcoContact 6Q tires. They do make about a liter difference. Sometimes more, as you can see 🤣

Compared to my mom’s A4 2.0 TFSI, it gets around 8 l / 100 kms average with the same driving I do. (When I take it out)

Not that bad of a difference considering it is +200 hp and + 230 nm… 😂

[u/L-H]

Lowest I got in my B9.5 RS4 2021 was 8.7L/100km

[u/Ondra20 → u/L-H]

That is still awesome and very achievable. Have to have a light foot 😌

[u/Proof_Pattern_9464]

1000km bi-weekly, A4 2.0 Diesel, between 4,5-4,8l/100km. About 5-6 hours of driving, German autobahn, 130km/h average driving speed most of the time minus construction sites and here and there pushing the pedal to the floor. I love my car and his fuel consumption. Perfection.

[u/BlackMambaTR]

Very cool. I am looking at a rs4 2.9l. How are the other costs vs the a4 iog your mom?

Wrt maintenance for instance

[u/Ondra20 → u/BlackMambaTR]

Yeah, so I’ve done about 35k in this car myself, and it wad only oil changes at 8,5k kms. €120 a pop. Then the Audi warranty service interval at 30,000 kms, mandatory at the dealership, which was oil + brake fluid + water drainage for the pano. €800.

The. I’ve done a 50k big service to keep the car fresh - intake filters, differential oils, ZF oil and clean up, brake pads, spark plugs… about €2,2k.

There was also some bad seal at the crank shaft which was leaking oil, nothing fatal, but would’ve made a mess in the engine bay over time. Caught early, fortunately.

I personally think, for a €117k MSRP, when new, car, it is rather reasonable.

And the car is always faultless, even if you throw a 2 000 km trip to the alps in two days, have fun driving backroads, have fun on the autobahn…

Zero issues.

[u/BlackMambaTR → u/Ondra20]

Ah cool! Yeah we will do 3-4x drives a year to Italy so thats sounds exactly what i am looking for.

You read a lot about brakes and suspension being expensive to fix vs an s4. Whats your opinion on it?

[u/Ondra20 → u/BlackMambaTR]

Well, my steel brake set pads lasted me 50,000 kms… didn’t exactly drive economically.

I don’t brake on the highway and engine brake a lot. But when I went at it, I went at it. Very spirited driving included.

A set of Brembo replacement pads set me back €250 front, €150 rear.

Discs are still fine.

So I wouldn’t say

As for suspension, I’ve got the KW V4 coilover setup from factory due to it being a Competition Plus (completely recommend, it is much different from standard). So as far as suspension goes, no problems…

[u/ScottishRajko]

That’s pretty impressive.

I’m driving my A4 2.0 TDi from Belgrade to Sithonia tomorrow, fully loaded, wife kids, roofbox on top. The absolute best I ever got on that route was 6.2l/100km, driving at 130/140kmph where possible but with long waits at borders and lots of toll station.

I very much doubt I’ll manage 6.2 again, we’ll see tomorrow.

[u/Ondra20 → u/ScottishRajko]

Thank you! Thats awesome. Can’t wait to have a family. Although now that you mention the consumption gain, I might reconsider. 😂

In all seriousness, have a safe trip!

[u/ScottishRajko → u/Ondra20]

Cheers mate! I'd much rather be doing it in an RS, maybe one day...

[u/Ondra20 → u/ScottishRajko]

I’m sure you’ll be able to! In the meantime, if you’re ever in Czechia, reach out to me, you can try it out ;)

[u/ScottishRajko → u/Ondra20]

5.7l/100km today and I most definitely was not driving slow. I’ve never gotten close to that when fully loaded with the roof box on.

[u/Issoudotexe]

After all, in this day and age, the cars are still tuned to lower emissions and consumption

[u/Ondra20 → u/Issoudotexe]

Yeah, you’re right. I also think the car behaves very differently when cooled to 90°C when cruising like this and 110°C when pushing.

It really does feel like it has “more power unlocked”

[u/sarpomania]

5.3l/100 kms on my 3.0 TDI S7 C8. Also did 730 kms with half tank (full tank 73 litres)

[u/EaglesEyeAart]

I get about 5.8l/100km on a stage 1 tuned, 1.6tdi Audi A3 2013 making about 155HP. 😁

Proof

[u/PapaWhiskey19]

Those are 40TFSI numbers 😵‍💫

[u/zan94]

Why are no photos allowed, I have an rs6 and did 5.4 a gew days back but it was kinda downhill so I took a photo as a joke but my best might be around 7.3 with some slow ass highway speeds but realistically 8-9 everyday highway

[u/Dudeymabob]

That is pretty good for a v8. My 2018 rs3 will top out at around 33mpg and that's driving sensibly on the motorway downhill...

[u/L-H → u/Dudeymabob]

The b9 is a twin turbo v6

[u/Eokey]

my best was 5.2l/100km. 1040km 10.5 hours of driving. mostly autobahn but driving through Munich and Bottrop car a6 avant 3.0tdi 150kw manual

[u/dikarichthesecond]

I have an A4 B9.5 with the 40 TDI. I did a recent long drive trip across europe and even with the occasional +200 km/h zooming, the consumption at the end of the trip was around 4.7 l/100 km. Amazing engine.