1989 Civic DX Hatch. Stock motor, automatic transmission, power steering and air conditioning.

I don't use the air conditioning that often so what should the gas mileage be without it.

And yes, that tiny 92HP motor, running the car and two other accessories (A/C and PS) makes the car PRETTY FREAKING SLOW!

Thanks!

 

ive never owned a dx, but i have owned a 91 hf with bone stock motor (minus the intake) and it got around 35mpg, i now have a 91 si with a b16a I,H,E and gettin around 30ish depending on how i drive.

 

I wonder because for a long time I had been getting pretty bad mileage. It seemed like it was 27 MPG or so. But that could also be because I think the tank is lower than it really is.

When it is on empty for like 2 days straight and I fill it, there would still be like 3 gallons left in the tank or so.

I still see people on here rocking like 35+ and I was just barely making 30 MAYBE.

I put a new oxygen sensor in, it seems to be helping, but I am still curious as to what I should get. And I know it will probably be less than normal cause it is powering the steering and running and extra pully for the A/C.

 

when was your last full tuneup?
autos arent as efficient as a manual. more power is lost in transition to the wheels. im getting 30 out of my ef sedan with auto and a/c.

 

'89 Si Hatchback, D16A6 engine, 5sp MT from a CRX HF, A/C, daily commuter 135+ miles @70-80mph... I get 31-32mpg

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by pimpwagon &raquo;</TD></TR><TR><TD CLASS="quote"> when was your last full tuneup?
</TD></TR></TABLE>

 

whatever the owners manual says.

but.....my si got 38 mpg on the last tank.
you cant measure by gallons on the tank,
fill up--run till next fill up. divide how many gallons it takes to fill by the number of miles on the trip odometer.

 

The auto is rated for something like 30mpg combined by the epa, so 27 is pretty average, the mileage on the autos really suck. I managed to get 40mpg out of my crx when it was auto,

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by sierrakilo &raquo;</TD></TR><TR><TD CLASS="quote">'89 Si Hatchback, D16A6 engine, 5sp MT from a CRX HF, A/C, daily commuter 135+ miles @70-80mph... I get 31-32mpg</TD></TR></TABLE>

I used to get 35-38mpg @ 75-80mph with my A6 engine, ZC/Si hybrid tranny (with the AC on). that

HF tranny is only worth a crap if it's only pulling the weight of an HF chassis.

 

Ok, it sounds like I am normal then. Because I seem to come up with anywhere from 27 to 30 something. Last full tune-up, no idea, but I know that needs to be done.

Thanks.