What is the consequence of using 85 octane level gas in my 2007 Audi A4 3.2 Quattro?

Asked by Feb 01, 2014 at 05:34 PM about the 2007 Audi A4 3.2 Quattro

Question type: Maintenance & Repair

I bought the car used.  It has 80,000 miles on it.  I have been using premium but a friend
says Ed Wallace says that it makes no difference whether I use regular or premium.  I
don't want to damage my car and I know next to nothing about engine maintenance.  I just
know to fill the tank when it gets low and  change the oil and rotate the tires periodically.

4 Answers

8,865

well lets jsut put it this way. if you use regular gas in a high performance engine you will get less then half the use out of the gas plus could gum up the system with the poor quality gas. Its best to stay with the better quality gas and pay a little extra then to screw up the system on a very pricey to fix car. i generally use petro's ultra clean which is a 93 tes gas and my car loves me for it sure its like maybe 6 dollars more to fill the tank but its better then changeing the fueal filter and cleaning the sensors every month due to poor quality gas

25

I would definitely only use premium gas. When I first got my A4 and continued my old habit of putting in regular fuel, you could almost tell that the engine wasn't running as smoothly as it's supposed to. Once that fuel was flushed out and replaced with premium, she loved me once again! It does make a difference what fuel you put in.

10

You can use regular, but your performance and MPG will go down. I already did the math. the miles you lose in using lower octane mean you have to fill up sooner. You end up spending the same in the long run (not counting the additional carbon buildup) by using the low octane gas. So do yourself a favor and keep the octane to at least 91. :)

1 out of 1 people think this is helpful.
15

As with other answers you will get less MPG which wipes out the fuel cost saving as well as poorer performance from your engine. It pays to follow the manufacturers recommendations or you will pay on costly repairs. Your engine management system is also mapped for the higher octane and it will try and compensate for the lower octane fuel.

1 out of 1 people think this is helpful.

Your Answer

Add photo

Related Questions

  • Can low octane rated gas be the reason for 3 cylinders to constantly misfire? 4 answers

    I bought my 2004 Audi A4 3.0 quattro two weeks ago, i have used premium (93 octane) gas ever since, but two days ago i put in basic unleaded (87 octane). Just a day later my CEL turned on while d...

    2004 Audi A4 3.0 Quattro

    -

    Maintenance & Repair

  • '07 Audi A4 2.0T won't start 2 answers

    Hi all, Audi A4 will crank, but not start, AT ALL. I changed the oil, and the oil filter in my Audi A4. I replaced the filter with a new one, and poured 5w-30 instead of 5w-40 like the recommended....

    2007 Audi A4 2.0T Quattro

    -

    Maintenance & Repair

  • Car starts and it shuts off/loses power 164 answers

    I have a 2003 Audi A4 Turbo.93K on it. When I start the car, the engine starts and as the RPM gauge goes up, it just goes right back down, the car shutss off, as if it can not stay on, sometimes its s...

    2003 Audi A4 1.8T Quattro

    -

    Maintenance & Repair

  • 2001 Audi A4 1.8T started ticking 20 answers

    Hi everyone, I need your help I recently got a 2001 audi a4 after my 03 jeep cherokee died on me (RIP). The audi has been driving so well, until this morning on my way to work. I started the car, a...

    2001 Audi A4 1.8T

    -

    Maintenance & Repair

  • Where is the best place (or website) to buy salvage parts? 2 answers

    Need parts for 2007 Audi A4.

    2007 Audi A4 3.2 Quattro Cabriolet

    -

    Shopping & Pricing

A4

Looking for a Used A4 in your area?

CarGurus has 10,833 nationwide A4 listings starting at $1,333.

ZIP:

Search Audi A4 Questions

Audi A4 Experts

#1 Deathjam4
Deathjam4
Reputation 3,100
#2 FordNut
FordNut
Reputation 770
#3 lukeyramone
lukeyramone
Reputation 510
View All

Related Models For Sale

Used BMW 3 Series
1,063 Great Deals out of 34,784 listings starting at $900
Used Audi A6
119 Great Deals out of 6,678 listings starting at $2,495
Used Audi A5
99 Great Deals out of 2,834 listings starting at $8,495
Used Mercedes-Benz C-Class
555 Great Deals out of 30,565 listings starting at $1,000
Used Audi S4
37 Great Deals out of 1,023 listings starting at $3,500
Used Audi A3
76 Great Deals out of 6,444 listings starting at $3,500
Used BMW 5 Series
503 Great Deals out of 14,579 listings starting at $1,375
Used Honda Accord
681 Great Deals out of 82,246 listings starting at $500
Used Ford Mustang
331 Great Deals out of 45,576 listings starting at $2,000
Used Dodge Charger
240 Great Deals out of 27,116 listings starting at $1,997
Used Audi A8
45 Great Deals out of 1,833 listings starting at $2,990
Used Lexus IS 250
215 Great Deals out of 5,496 listings starting at $5,499
Used Mercedes-Benz E-Class
474 Great Deals out of 22,559 listings starting at $1,999

Used Cars For Sale

2017 Audi A4 For Sale
10 Great Deals out of 4,743 listings starting at $29,976
2016 Audi A4 For Sale
9 Great Deals out of 207 listings starting at $24,699
2015 Audi A4 For Sale
9 Great Deals out of 314 listings starting at $16,995
2014 Audi A4 For Sale
37 Great Deals out of 1,185 listings starting at $14,993
2013 Audi A4 For Sale
24 Great Deals out of 554 listings starting at $10,988