1998 Dodge Neon Q&A
1998 Dodge Neon Question: Fuel Economy problem
Maybe the catalytic converter is clogged have a muffler repair shop check this - Valleyautotech
check your tailpipe for black soot if so your fuel regulator is not working correctly assuming that you used to get more MPG - JunkEagle
Check out the .gov website http://www.fueleconomy.gov/Feg/bymake/Dodge1998.shtml you have to enter the type of transmission otherwise I would have given you the exact page link. - patrick mannion
I had similar problem when I bought my 98 Neon. I started out with 17 MPG, replaced the front O2 sensor. It jumped up to 22 MPG so replaced the back one too and my miliage has been great ever since. I get tween 30 and 40 MPG depending on conditions. On a clear day no traffic and straightway driving on Interstate on a trip i can get almost 40 MPG... around the city i get tween 30 and 35..a well maintainted car can make a differece. I do regular maintence and watch my miliage every time i fill up..just mileage alone can be a good indicator just like it was in the older cars that did not have computers and such... - wabrant21532
Spark plug tube seals fail, causing the tubes to fill with engine oil and the engine to misfire. As a result, the engine may run poorly and fuel economy can suffer.
how do i check and how do o replace them
Just trying to find out if it is possible to run a car on gas fumes.