Help...terrible gas mileage.
02-05-2007, 02:26 PM
#11
2nd Gear Member
Thread Starter
Join Date: Sep 2006
Location: Lexington, KY
Posts: 268
RE: Help...terrible gas mileage.
ORIGINAL: bjh061487
these are generally cheap and most people could usually end up using new ones anyways so i would start here but also change the wires too
ORIGINAL: gsxrstang69
Fuel Filter and Plugs is what I would check.
Fuel Filter and Plugs is what I would check.
02-05-2007, 04:04 PM
#14
1st Gear Member
Join Date: Dec 2006
Location: North Carolina
Posts: 98
RE: Help...terrible gas mileage.
ORIGINAL: 04CrimsonGT
I get great gas milliage, city or highway. Mostly 23 mpgcity and 26 highway. And thats not even babying it much. On long trips, I have been known to get almost 30 mpg doing 75 all the way.
If you didn't advance the timeing and didn't increase the compression ratio, and are running an octane higher than 87, thats your problem. The higher the octane, the harder the fuel is to burn. If you don't have any compression or advance timing to help burn the fuel, then you are just wasting your money and losing horse power along with milliage.
I know lots of people that are running 93 octane in their stockl stang thinking that it will get them better milliage, but its not, you can actually lose up to 10 mpg and 20 horse power depending on what octane you are using on a stock stang.
I get great gas milliage, city or highway. Mostly 23 mpgcity and 26 highway. And thats not even babying it much. On long trips, I have been known to get almost 30 mpg doing 75 all the way.
If you didn't advance the timeing and didn't increase the compression ratio, and are running an octane higher than 87, thats your problem. The higher the octane, the harder the fuel is to burn. If you don't have any compression or advance timing to help burn the fuel, then you are just wasting your money and losing horse power along with milliage.
I know lots of people that are running 93 octane in their stockl stang thinking that it will get them better milliage, but its not, you can actually lose up to 10 mpg and 20 horse power depending on what octane you are using on a stock stang.
I run 93 in my '97 Cobra because of the engine, should I adjust the compression and timing and how do I do that? Thanks!
And I can't help keep my foot away from the pedal... Boost ftw? 
Thread
Thread Starter
Forum
Replies
Last Post
Matt's 95 Stang
5.0L (1979-1995) Mustang
2
10-05-2015 07:16 AM
