Nine2Eight

My automatic 87 S4 gets on average 13 MPG. Is that what I should expect?
Other than no cats, the car is stock. What kind of MPG are others getting
out there? When gas was 1.50 a gallon it never phased me, but now
at almost 3 bucks a gallon it kinda gets my goat.

Joe Celeste
Seminole, FL

Schocki

About 18 MPG average.
Highway only: Up to 22-23 MPG.

1992 GTS Euro

NickT

My '88 averages 19MPG on back roads, higher on the highway... Not bad!

Something doesn't sound right if yours is around 13MPG, unless you can't keep the right foot off the floor

DSC928

I always got at least 18 mpg with my '88. Usually a little better. 13 is definitely not right.

AO

It all depends on driving style. I have always averaged much less than others in the current car and my old '82. I love to accelerate, so I drive it like I'm at the dragstrip: floor it in 1st, floor it in 2nd, then maybe ease up in third. This does wonders for gas mileage! Last average read 14.2, but then most of my driving is city driving.

Colin Emerson

Agreed 13 mpg is too low, unless you have it floored all the time. Toolng down the highway I think you can get low-mid 20's per gallon.
I am paying about 3.80 a gallon in Canada, and that is probably the cheapest up here, don't feel too bad about 3$/Gallon. The price is only going to go up, but hey it's only money!!

AO

Sorry I should add, that when I am just cruzin aroud town on the highway, my instant MPG reads in the 18 to 20 range (advantage of having a digital dash!). Even that may seem low, but everyone in Detroit drives 80+.

Loaded

Exactly to the T what I get on my 89S4 Auto

Tom. M

On my 89GT..the digital readout gives me around 12.8l/100km....or in US...18.4mpg....

My old S4 gave around 18 to 22...(22mpg at 85mph on the way down to Devek Days a few years back)..

Currently the GT is showing around 7L/100km or in US..34mpg..but that's because the computer is being fooled by the large injectors (30lbers). It calculates the fuel economy off of the inj duration...

Later,
Tom
89GT

1981 Shark

Not to hijack, but in my 1981 5-speed, I average about 13-14, mostly in-town driving. I run through the gears, but I'm not flooring it constantly. Any suggestions as to where I'm losing the MPG's?

However, suffice it to say, I could get much less and I'd still keep driving!

Chazz

From San Diego to Monterey on I5-101-Cabrillo, heavy traffic to high speed bursts I averaged 19 mpg last month. At 75 on a level highway with neither headwind nor tailwind I get about 21 mpg. In daily driving, mostly city, I average 15.8 mpg.

PorKen

I get 11-13 city in my '81 auto, never over 20.5 highway. I try and ease away from stop lights, but I do tend to drive 'quickly'. With the stock exhaust system, and tuned for emission tests, I'll get 14ish city.

SharkSkin

Yes, that's too low... I get about 19mpg on a long trip, average speed(including stops) ~85mph...

1981 Shark

Thanks. Well I guess I'm not too far off, then. I do plan to replace the long overdue "Y" connector soon and I could be losing a drop or two there (don't smell any gas). However, I would suspect if I'm losing a significant enough amount of gas to affect my mileage, I'd have have at least gotten a whiff by now. Oh well, where else can you have this much fun for about $0.25/mile!

bd0nalds0n

Are you running stock tire sizes? I calculated that my 275/40/17s were around five % larger in circumference. Therefore, my speedometer/odometer is off. When I use this correction factor in my mileage, I find I get around 15 mpg in mixed driving. I can get 20ish on the highway, but idling around down is baaaaad.