95 or 98 fuel?

[550superfast]

I usually run my petrol cars on Shell V Power, but I read somewhere that this Audi V6 is just as happy on 95. What are your thoughts?

[Kiteral]

I've noticed no difference in performance between V-power and standard 95 Ron petrol and I also seem to remember reading that the S4 is mapped for 95 Ron.

If you remap then obiviously you can map it for super or normal.

[Nickyboy]

See here about half way down for a mini discussion on fuel.

http://forum.rs246.com/viewtopic.php?f=49&t=97367

[longdog]

I run mine on 95, didn't notice any difference on super - except for the cost!

[Bacardi Jo]

Have run mine on 95 for two years and 13500 miles averaged 22mpg .

[550superfast]

Thanks, looks like 95 is the way to go.

[fcuk1_6]

Has anyone ran a B8 S4 with stage 2 MRC tune on 95 RON, if so what sort of figures did it achieve?

[DazN]

Shell Optimax was launched claiming to be better for the engine as it had all these cleaning agents, now it's branded as V Power but the regular fuel seems to claim the cleaning agents too. If there's no difference then go with the cheapest!

I'm doing a compare at the moment, going to fill up 6 times with V Power, then reset the indicators and run 6 tanks on 95, see if there's a difference.

[Bacardi Jo]

I ran mine on 95 for the 2.5 years i had it and it never missed a beat.

[GrahamS4]

MRC have done a stage 2 car on 95 Ron. I don't recall the figures but they were very good. Down on what was possible with better fuel but still very impressive.

[longdog]

I run mine on 95 and she has alway run like a dream.

[R1NGA]

I (sadly!) log every drop of fuel used in my S4 on the most excellent RoadTrip iPhone app and can say that over 20,000 enthusiastic miles exclusively on V-Power (or on occasions the next available high octane alternative) I've averaged 25.2mpg, which I think might be slightly up on cars running normal 95. Maybe. I'm a fan so I'll stick with the 99 option thanks....

[spr0cket]

Mine has been run on 95 for the 1.5 years I've had it and much to Doug's disgust when he replaced the APR stage 2 tune with his MRC rework, though it means my employer foots the fuel I cost rather than I, or at least 60% of it.

I can't find dyno chart at minute but recall it was 465 PS with Doug confident another 15 or so if higher octane was used.
On the road though I doubt you'd get to realise that extra?

[GrahamS4]

Mine has been run on 95 for the 1.5 years I've had it and much to Doug's disgust when he replaced the APR stage 2 tune with his MRC rework, though it means my employer foots the fuel I cost rather than I, or at least 60% of it.

I can't find dyno chart at minute but recall it was 465 PS with Doug confident another 15 or so if higher octane was used.
On the road though I doubt you'd get to realise that extra?

Yours was the car I was thinking of. The plot was on the MRC facebook page at the time.

I doubt you would notice the difference too and I think your reasons leave no questions.