Hi. I drive a Dodge Shadow 1991, which has 190,000kms. Within the last two months I've performed a tune-up (Major) i.e. includes replacing oxygen sensor. I was just wonder how many kilometers should I be getting on a full gas tank. i.e. roughly 40 liters. Presently I'm getting about 300-310 kms on a full gas tank. Is that normal for model, year and kilometers? Alberto