been bugging me for a while now and as im low on funds is becoming quite a problem.
firstly ill ask if 240 miles from a full tank on a mk4 1.8 sport is normal? i dont drive fast at all, i very rarely use windy stop-start roads unless im around town but ive noticed that my fuel gage will move from full within about 30 miles
although my 1.4 astra got to 60 before moving and being a 1.8 its going to use more fuel i cant help but think somethings wrong somewhere. i cant smell petrol but noticed the other week my mot advisory said the exhaust was poorly modified, would this contribute towards it? also what ways can i modify my engine to make it use less fuel?