Diesel engine generally need higher running and continuous.
unlike petrol which dont form a residue or some thing like that in fuel pipes as it vapourise , diesel do in longer period of time.
most of cars in present day is modernized and one week gap for diesel engine is finding lesser problem .
past is past.
since you have got diesel , keep driving , cheers !
And for the safari , its fine till you daily drive .
the problem that you both face in case of daily driving but of lesser km , is only with battery.