Summer Gas

FJ Tex · 07-19-2007, 03:21 PM

i've been using 93OCT and i know its not totally neccisary and i know theres plenty of debate as to weather or not to use 'mid grade' etc, but that is not this thread. just curious, anyone know why i'm getting bad exhaust smell, noticeable mostly when i romp on the gas (i try not to too much!) i've always assumed taht its just the increased sulpher content in the fuel that they add in suring the summer months but i'd just like to be certain. thanks!

powersFJ · 07-19-2007, 03:25 PM

By bad smell...is it sweet...or a nasty smell....if it is sweet...take it in...the engine is running a bit rich, take it in and have the mechs adjust it .....if it is nasty...check under the hood for sleeping cats...it happened to me

FJ Tex · 07-19-2007, 03:32 PM

no not rich fuel mix, at least i dont think (l itterally have almost no sense of smell) it dosent smell like gas as far as i can tell. either way the computer shouldnt be letting it run that rich anyway, right? wouldnt the ammount of unburnt fuel trigger a CEI?

max-9 · 07-19-2007, 03:33 PM

Sometimes its the cat making the smell

powersFJ · 07-19-2007, 03:35 PM

Quote:

FJ Tex previously said:

no not rich fuel mix, at least i dont think (l itterally have almost no sense of smell) it dosent smell like gas as far as i can tell. either way the computer shouldnt be letting it run that rich anyway, right? wouldnt the ammount of unburnt fuel trigger a CEI?

The CEI may be out of wack...they can plug it in and run a diagnostic and see what may be causeing the problem

FJ Tex · 07-19-2007, 04:36 PM

friggin gay ass emissions. i jsut wanna get some Jegs Exhaust cutouts and be done with it!

Kansas Law Dog · 07-20-2007, 08:00 AM

The United States is in the process of reducing sulfur in gasoline. The Rocky Mountain states (because the refineries are small compared to the rest of the country) have gotten a small break on the date of compliance, so the gasoline purchased in Colorado, Utah, Wyoming, Montana, etc. may contain higher levels of sulfur in the fuel. Additionally, some of these states (Colorado is one) have opted to use ethanol in the gasoline blends to ensure reduced emission of EPA listed exhaust compounds. To the best of my knowledge, ethanol producers do not have to certify the level of impurities in the ethanol product. Hence, the smell could be solely from the combustion of the ethanol portion of the gasoline blend, or a combination of the sulfur in gasoline and the impurities in ethanol.

J-Rock! · 07-22-2007, 02:10 AM

I get summer gas every summer...but then again, it's usually from bad food.