S4 running costs

Just wondering if anyone has an Audi S4 (v8) and can give me an idea of MPG, service costs, tyres etc...

[johnp68]

Had mine around 15 months. Average about 19mpg. Service cost was about £500 (every 15K miles or so I think). Just fitted 4 new tyres - Goodyear F1's - £103 each from Bracknell Tyres.

[colinrob]

I get around 16-17mpg average had two new tyres fitted just before I purchsed it approx £140each inc vat and fitting. Service is about £500 for oil service and £750 for full service

[jamieg]

You need to speak to "Pincher" here on P/heads - try posting on the Essex forum. He runs one of these monsters. Cheers, Jamie

[drybeer]

Well economy is, as previously mentioned by another p'header, around 19 average.

Mine tends to do around 14 - 15 when knocking around town on my day off.

If I do a long journey, I've had 26mpg sitting at between 70 and 80 on cruise control...

I've also had 25 on shorter 30 mile journeys by sitting at 60.

Awesome car - just do it - mine is by far the best car I've ever owned.

[GSCOllie]

Manage to get 21mpg out of mine but full s/s exhaust system helps with that to a degree, esily 27 mpg on a motorway journay and that's not hanging around speed either.

AVS1 was £313 and AVS2 was £506 (needed plugs on second one), each at 18000 mark, price largely because it needs 9 litres of oil to fill the V8. Tyres were £500 for 4 Goodyear F1 GSD3's haven't chnaged them yet as I bought new alloys for my car with tyres on so still some tread on and just gone through the 29 months / 40000 miles ownership barrier.

I love this car, it has some faults but none that aren't outweighed by the perfomance in a straightline and round corners and the grin factor every time I get in it.

Oh, it also uses about a litre of oil every 5-6k miles, I may switch to fixed service interval on the next service

[johnp68]

Forgive my ignorance, but was is the benefit of changing to a fixed service interval?

[drybeer]

I have to say - I'm not convinced about whether a fixed interval would be any benefit.

Put simply, on the 4.2 Audi Variable Servicing, the long life oil (quite thin consistency) seems to just slip through the engine a bit quick. So constant top ups are needed. This can cost a lot at in excess of £10 per litre of long life oil.


That being said, mine is not as bad as others say on oil consumption. I find it no worse than the 2.0TDi I have as a company car.

However, the point of the long life oil is that it does not fall "out of grade" so quickly.

So extended servicing intervals can be had - Audi quote 20,000 miles possibility. But on an S4 15,000 miles would be an average I feel.

Changing to a "fixed" servicing interval would mean you could run the vehicle on a normal semi synthetic oil, and maybe have less consumption.

However you would have to service the car at 10,000 miles. So the cost would be higher anyway per 30,000 miles driven. So I'm not sure I would do this.

Also, looking at your owner's manual, it recommends the same grade oil for long life and fixed servicing.

So - I'm sticking to variable long life!