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Discussion Starter #1
I filled up with 93 octane gas earlier this week,I made it to 175 miles on the tank when my gas light came on. This car drinks gas like I drink beer lol Am I in need of a tune-up?
 

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Thats sounds horrible... Is ur car tuned for 93? I no for my car i can get about 80-100 to half just driving around but like 150-175 when all highway
 

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9k All Day.
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lol, i get about 105 to a half tank, and 220ish bare bones, on the edge, fumes empty.
this is winter time tho.

in the summer, about 230+
 

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Discussion Starter #4
Thats sounds horrible... Is ur car tuned for 93? I no for my car i can get about 80-100 to half just driving around but like 150-175 when all highway
Its a 2000 auto 113k miles pretty much stock. Ive noticed no difference when I fill up with 89 or 93.
 

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Disturbin' The Peace
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All city, I get +/- 200 miles until I fill up. (I never let the tank run dry, I always leave about 2 gallons in) If I drive conservatively I have managed around 220+ again, all city. This is on a predator 93 tune.
On the highway 24-26 mpg.
 

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Change your air and fuel filter, check and maybe change your plugs, clean your MAF, and maybe get some new 02 sensors.
 

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a.k.a. Racecougar
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^ Agreed. And if you're not tuned for 93 octane, you're wasting $$ running anything but regular-grade.
 

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Too Soon, Junior!
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93 will give you worse fuel economy if your spark advance isn't compensated for the higher octane fuel. Everyone tends to think that 93 has more chemical energy than 87 since sports cars use it. This is not true, octane is just a chemical compound that resists pre-ignition that would cause detonation or knock. With that being said though, I'm lucky to get 175 miles on a tank, Miami traffic is pretty horrid.
 

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I get about 230 to 240 to the tank with my stock '00 and a 5-speed. 200 if I'm leaning on it some. I was only getting 180 before I changed my plugs and O2 sensors.
 
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