Stop puting Premium in your Audi?

Question

Read this article I think you will be surprised.....

http://www.nytimes.com/2008/08/03/automobiles/03OCTANE.html?no_interstitial

Answer 1

Audi (1.8t) are turbo engines. THEY NEED premium even with a knock sensor.

So many car can use regular. But not turbo engines.

Good Luck....

P.S.  I've have already extensive about this issue.  I so wished I can use regular gas too.  Dang I wish I had non-turbo engine in my audi. !!!

Answer 2

Very true, i run 87 in my 2.8L a lot and have no problems at all. You don't notice that power loss when your sitting in traffic.

Answer 3

It all comes down to the compression rating of the engine.  A high compression engine, i.e. 10 to 1 requires premium fuel.  A low compression engine, i.e. 8 to 1 runs on regular.  I have an Audi turbo that runs great on regular unleaded because the compression ratio of the engine is 8 to 1.

Answer 4

At the Audi Dealer I work at, I ask customer what they fill theirs with all the time. This is what I came up with:

A3: 87

A4: 87

A5: 89

A6: 89

A8: 91

Q7: 91

R8: 91 or Jet Fuel

S4: 91

S5: 91

S6: 91

S8: 91 or Jet Fuel

A8 L W12: Jet Fuel (1 Customer)

I had a Mazdaspeed3 which recommended Premium, I filled it with Mid-Grade and it was still a blast to drive. Unfortunately a drunk driver decided to hit it.

Good Luck