B8 S4 Ownership

[bungle]

Adrian E said:

it made it run smoother and you might get a 1-2mpg difference in economy, but not enough to warrant the additional 7p per litre of fuel

But a 2 mpg (25 to 27) increase is 8%, and a 7p increase in fuel price is 6% (110p to 117p), so that says it's worth it, especially if there is a side benefit of it running smoother as you say above.

Maybe my man maths is rubbish, and I've no desire to spend more if I don't have to, but it seems to stack up if you really could get (say) 2 mpg more, all things being equal.

[Tuscan Wil]

It depends on how long you intend to keep the car. Forget about performance and mpg for now. If you intend to keep the car for a long term then take a look at this....

http://www.cnet.com/uk/news/what-can-shell-v-power...

[Tuscan Wil]

Not try to be offensive, if I am so bothered with the mpg I would pick the 3.0 Tdi Sline instead of the S4....but then I could be wrong!?!?!

[Dr G]

Proper 99 RON makes a big difference with the 3.0T - if you need someone to verify this have a word with MRC on the subject. They swear by Tesco 99.

[Adrian E]

Tuscan Wil said:

It depends on how long you intend to keep the car. Forget about performance and mpg for now. If you intend to keep the car for a long term then take a look at this....

http://www.cnet.com/uk/news/what-can-shell-v-power...

That's a sales pitch, pure and simple. I run Shell fuel in any case (95 for the S5 and 98 for the S8, as it's mapped for it) but in the UK your fuel comes from a very small number of import points and has an additive pack added - sometimes pipe mixed, sometimes dosed at the tanker.

To the post above, I said you might see 1-2mpg - it will vary by car and in most cases you won't see any real difference.

A quality fuel definitely matters for consistency.

As soon as you go near a remap the role of fuel completely changes - if an MRC stage 2 map is based on you running higher octane, then that's what you need to run to get the full power available from the map.

[bungle]

Interesting debate everyone

Tuscan Wil said:

Not try to be offensive, if I am so bothered with the mpg I would pick the 3.0 Tdi Sline instead of the S4....but then I could be wrong!?!?!

True (and no offence taken ). But given I already have the S4 and by simply picking up a different pump I could save or lose money I'm interested to know, as I'm a geek

Dr G said:

Proper 99 RON makes a big difference with the 3.0T - if you need someone to verify this have a word with MRC on the subject. They swear by Tesco 99.

It that because their map is optimised for 99 though. Would they say the same about a standard car?

[MattS3]

bungle said:

Adrian E said:

it made it run smoother and you might get a 1-2mpg difference in economy, but not enough to warrant the additional 7p per litre of fuel

But a 2 mpg (25 to 27) increase is 8%, and a 7p increase in fuel price is 6% (110p to 117p), so that says it's worth it, especially if there is a side benefit of it running smoother as you say above.

Maybe my man maths is rubbish, and I've no desire to spend more if I don't have to, but it seems to stack up if you really could get (say) 2 mpg more, all things being equal.

I could be wrong here too, but wouldn't you need to work the actual overall cost out in gallons too?
So 2mpg might be an 8% increase, but you'd need to times the 7p per litre by 4.5 (litres in a gallon) so the cost would be 31.5p extra for an extra 2 miles.

I think.....

[BIGYIN1314]

Basic math is, if you do say 8500 miles per year - 22mpg @ 95 Ron would cost (at todays prices) £1914 and 24mpg @ 97+ Ron would cost £1867 - so a saving of £47 a year. MPG based on what i get right now on 95. However I have used 97+Ron for about 4 weeks and saw no difference in MPG whatsoever (nor did I notice any difference in the way it drove) so the additional cost is simply throwing away money (IMHO).

With regards to Dr G's comment regarding MRC and Momentum 99 - is that on a stock car or on a mapped one? As they themselves have said that on a stock car there is no value in running anything other than 95 Ron

http://forum.rs246.com/viewtopic.php?f=49&t=97...

[quattrokhan]

Hi All,

I am new on this forum, I have recently purchased a B8 S4. Previously owned a B5 S4 for over 9 years

It was interesting reading the last 57 pages

Edited by quattrokhan on Friday 6th March 16:05

[jimmyjimjim]

But did you really mean the grumpy smiley?

[h3lp]

Hi All,

The oil warning light just came on again, and I'm beginning to get worried.

I bought the car in November with 66k miles on the clock.

I've now put a total of 2 litres in since I bought her and the oil warning light has come on again.

To be fair, I do rag it when I drive it (although the Mrs is more sensible). It came on yesterday when I was booting it on an open stretch.

2 litres seems excessive though and I haven't noticed any leaks or stains on the road where she's parked.

Any thoughts welcome

[Adrian E]

Take it to the dealer and ask them to do a consumption test for you, assuming the level sensor is reporting the correct oil level of course

[Dr G]

Sorry, I could have sworn there was a reference to a mapped car but I clearly just made it up. I put 95 in standard cars too for no reason other than it says so on the fuel flap.

Last time I did a long run in one I averaged about 31 on whatever 95 RON was available at the side of the motorway.

[Scuffers]

h3lp said:

Hi All,

The oil warning light just came on again, and I'm beginning to get worried.

I bought the car in November with 66k miles on the clock.

I've now put a total of 2 litres in since I bought her and the oil warning light has come on again.

To be fair, I do rag it when I drive it (although the Mrs is more sensible). It came on yesterday when I was booting it on an open stretch.

2 litres seems excessive though and I haven't noticed any leaks or stains on the road where she's parked.

Any thoughts welcome

2L in how many miles?

[h3lp]

It's due a service so I'll get them to test it while it's in.

Hardly any miles done, 2k at the most.

[h3lp]

Strange, the warning light has gone out again.

Might be a dicky sensor. Bit worried as I might have put too much oil in now!

Will get the stealers to install a dipstick!

[Adrian E]

h3lp said:

Will get the stealers to install a dipstick!

Part number is 06E 115 611H (less than a tenner)

The dealer will claim one isn't available - part number is for the 3.2 engine or 3.0t used in the Allroad - think they stop listing it on age grounds from when they fitted electronic level sensors only.

[h3lp]

Brilliant thanks

[Hol]

Has anyone had their Black Edition Alloys refurbished at all?

I managed to kerb one of mine 270deg of the way round, tryng to park as close to the berk as possible in a very narrow road. the only way I can cheer myself up, is to 'assume' I saved the side of the car from being swiped.


I cannot work out if the lip is polished or painted, or how many times it could be refurbished?

[RammyMP]

Hol said:

Has anyone had their Black Edition Alloys refurbished at all?

I managed to kerb one of mine 270deg of the way round, tryng to park as close to the berk as possible in a very narrow road. the only way I can cheer myself up, is to 'assume' I saved the side of the car from being swiped.


I cannot work out if the lip is polished or painted, or how many times it could be refurbished?

I've done one of mine quite badly. I was going to go to a local place to get a price this week while I'm off work