Lousy fuel mileage on my 93 sse non sc - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


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Old 07-25-2006, 06:11 PM   #1
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Default Lousy fuel mileage on my 93 sse non sc

Hey ya'll. My question is .. gas mileage. I get around 20-22 mpg in my bonny. I have always ran 93 octane in it. Will running higher octane give me less mpg? I have approx. 144k on the car. Plugs, wires have been changed. Will the O2 sensor make a difference? Or is the mpg about right for this model?.. Thanks..
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Old 07-25-2006, 06:22 PM   #2
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I'm curious to see what others get. I'm new to the Bonneville world. My '96 SSEI will get 20 mpg max, and that'* with a pretty light foot (OK, as light as can be with a supercharger on tap). I assumed this was normal mileage.
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Old 07-25-2006, 06:58 PM   #3
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Default Re: Lousy fuel mileage on my 93 sse non sc

Quote:
Originally Posted by dluttmer
Will the O2 sensor make a difference? Or is the mpg about right for this model?.. Thanks..
A new O2 sensor will probably help you out. I assume the 20-22 mpg is combined city/hwy? You should be able to get close to 27-28 mpg highway with your car. The 20-22 doesn't sound too bad to me especially if you're running A/C all the time and it is a combinedestimate.
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Old 07-25-2006, 07:23 PM   #4
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Combined City hwy should fall into the 22-27 area... If everything is functioning as it should be, on the highway at a deadset 75 or so you should pull down 28-32 depending on the model... All 93 SSE NA'* are rated 18 city and 28 hwy... Most will do 2-3 better on the highway than the sticker rating

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Old 07-25-2006, 07:32 PM   #5
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My '93 N/A SSE used to get 27-29

about a month ago i ran it almost as empty as i could get it and filled it up hit the trip button and went to empty again....i did this two times, first time i got something like 380 miles, second time i did it i got 409 miles before i fille dit back up

so now im getting between 22 and 25 mpg so i'd say its normal...oh and i have 162K on her
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Old 07-25-2006, 07:39 PM   #6
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I think you're in the ballpark for daily driving - that'* about what we get on our 93 SSE around town...a little better than 20. If it dips below that I'll dump a can of injector cleaner into the tank and that usually brings it back up.

I noticed in your sig that you can only get about 107 mph out of your car. Does anyone know if these things have a governor of some sort in them, mine maxed out at about the same speed?

Before anyone calls the cops, I live within 1.5 hours of the BONNEVILLE salt flats.
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Old 07-25-2006, 07:46 PM   #7
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yeah when i replaced my O2 sensore my around town miles went up by 1 or 2, and my Highway miles by 1.... so it does help..
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Old 07-25-2006, 09:03 PM   #8
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I get around 21 MPG and that is just around my town only.

When I drove to WVU from Philly last year, I got around 30 MPG.
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Old 07-25-2006, 09:10 PM   #9
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Quote:
Originally Posted by 95-SE
I get around 21 MPG and that is just around my town only.

When I drove to WVU from Philly last year, I got around 30 MPG.
You sir are doing good... Don't change a thing

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Old 07-26-2006, 09:53 AM   #10
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Quote:
Originally Posted by SSE Motorhead
I think you're in the ballpark for daily driving - that'* about what we get on our 93 SSE around town...a little better than 20. If it dips below that I'll dump a can of injector cleaner into the tank and that usually brings it back up.

I noticed in your sig that you can only get about 107 mph out of your car. Does anyone know if these things have a governor of some sort in them, mine maxed out at about the same speed?

Before anyone calls the cops, I live within 1.5 hours of the BONNEVILLE salt flats.
with everything stock i about maxed 106mph in mine, i belive I can scrape two or three more mph out of her but i ran out of road
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