Weird issue, my car is using a shit load of petrol these days, way more than usual. Its now getting maybe 350km to a 40L tank (currently sitting just about 1/4 and only done 300km), where it used to get well over 400km around town, and on the open road it struggles to get 450km to a tank where it would normally happily get well over 500km.
I haven't done an oil change in a wee while, could this be the problem? or is it likely to be a dodge o2 sensor....