1999 Honda Civic XL, 106000 miles. Have taken good care of vehicle. Constant oil changes, filters ect. Have recently lost gas mileage, about 6 to 10mpg. New spark plugs, increased power but nothing to gas mileage. Vehicle runs very good. Maybe o2 sensor? Also great site, lots of information.
have the same problem?
Monday, June 26th, 2006 AT 3:52 PM