please guide me with your experience, i hvae Mira e:S with yokohoma tyres specs 155/65 R14 i replaced all four with dunloop orignal tyres with specs 165/70 R14 the reason is i want a bit more profile for bumpy roads of pakistan+orignal tyres was ended but above all tyres with specs of 155/65 R14(specs of mira e:S) not available in pakistan. untill now felt no issue on fuel economy and my car slightly lifts up, which is good for our un-even roads. is there any harm for machine or something else with these tyres??