Untypical MPG question
09-03-2005, 11:56 AM
#12
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Originally Posted by Lowrider0308
Originally Posted by 1993 SLE
Originally Posted by Lowrider0308
I cruise 75 at about 2200-2300 RPM. I love my 2.84 gear ratio!
Your Tach is off boss... Trust me on that...
with the 2.84 gears you should be doing 1450 at about 55... and about 1800-1900 at 70-75.... I was blown away while I was watching my 91 with a scantool... I was doing 46 at 1350-1400rpms
Yes those Taller gears get a little better milage.. We did the math once for what the gearing was and what the engine RPM would be at 100 mph and I think we came up with 2900 Rpms
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09-03-2005, 12:04 PM
#13
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Originally Posted by BonneMeMN
75 or higher i lose it because i'm above 2200 rpms..
Otherwise it'* 30+ MPG.gotten 40 once....
Otherwise it'* 30+ MPG.gotten 40 once....
I have done my 33 at 70mph
if I do 75-76 32 seems to be the magic number.... 80-85 seems to be 29, and well the worst was 26.9 <---- No idea how that happened...
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09-03-2005, 12:08 PM
#15
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Originally Posted by its840
im right at or right under 2k at 70 mph
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09-03-2005, 12:14 PM
#16
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Re: Untypical MPG question
Originally Posted by ComfyCar
I noticed a lot of people saying they can break 30 MPG going 75-80
I can pull off 33 doing 65 but after 65 My car gets more like 25 MPG
How can some people pull off 30 MPG doing 80? Good maintanence?
I can pull off 33 doing 65 but after 65 My car gets more like 25 MPG
How can some people pull off 30 MPG doing 80? Good maintanence?
I have always kept it tuned, new filters, wires, plugs once or twice a year, fuel system formula every oil change.... On my way home from my trip a few weeks ago, I did 80 and a bit better, with the AC on, trunk loaded down... I stopped for fuel in SC, and clocked in the high 29'*... The rest of the trip through florida revealed the same... High 29'*...
I usually do better than 29 at almost any given time... 32 is the norm for me... I checked my O2 on the 95 and noticed that its slowing... I had been wondering why my milage was a bit less that it usually it... If I was to drive a dead on 70, I would do 33 no problem..
The above is where my O2 sensor shopping thread started... All of my cars are due...
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09-03-2005, 12:26 PM
#18
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Originally Posted by Custom88
JR, how many miles do you have on those 02'*. I'm contemplating changing mine @ 47,000 miles.
On the 95 I forget... Really making me think here... I replaced one at 70,000 miles, and then at 87,000 or 88,000 the intake ruptured, after the repair the milage was 16 mpg... I replaced it... I'm at 142xxx now... 54,000 miles I think? I'm doing about 18 in town... I was doing 20-21... I seem to have lost about 3 mpg in town and on the highway...
I'm not sure what to tell you Custom....
At 47,000 it could be slowing, but I doubt that it has failed... I think your sensor is a bit on the expensive side... They say the newer ones are supposed to be good for 100,000 miles... I'm not sure that I trust that..
Its your car so thats your choice, If it was my car I personally would replace it... But weather or not it will make a diffrence is another story...
Good Luck Custom88
Let us know what you decide..__________________
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09-03-2005, 11:45 PM
#20
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Mine is original and has almost 87,000 freakin miles. I think they are only 90 bucks a piece and theres only 2 of them (1995, haha). At least there isnt 4 like the newer auroras.
Good luck dan and let us know the results.
Good luck dan and let us know the results.