I have a 98 Disco with 123K on the clock and the gas mileage is getting worse. The vehicle is completely stock and I'm getting about 10 MPG in the city about 225-250 miles per tank. I know that Disco's are not known for their superior gas mileage, however I'm getting worse mileage than guys with lifts and racks loaded on their vehicles.
I have changed the plugs to champion and the wires to magnacore 8mm wires. I got rid of the K&N (not trying to start another debate )and put a NAPA paper filter in along with a NAPA gold fuel filter. I have ran 2 cans of Seafoam in the tank, one in the intake and one in the oil. I run dino fluids and change them at specified intervals. There are no known fuel leaks, but the exhaust smells of fuel on start up. I have no codes present in the computer and even just passed my emissions check.
So after this long explanation, do you guys agree that the O2 sensors need to be replaced? I just want to make sure before I order these.
http://store.summitracing.com/partdetail.asp?autofilter=1&part=NGK-25044&N=700+115&autoview=sku
Thanks.
I have changed the plugs to champion and the wires to magnacore 8mm wires. I got rid of the K&N (not trying to start another debate )and put a NAPA paper filter in along with a NAPA gold fuel filter. I have ran 2 cans of Seafoam in the tank, one in the intake and one in the oil. I run dino fluids and change them at specified intervals. There are no known fuel leaks, but the exhaust smells of fuel on start up. I have no codes present in the computer and even just passed my emissions check.
So after this long explanation, do you guys agree that the O2 sensors need to be replaced? I just want to make sure before I order these.
http://store.summitracing.com/partdetail.asp?autofilter=1&part=NGK-25044&N=700+115&autoview=sku
Thanks.