When I saw Star Wars IV (the original), as an SF aficionado, I was impressed by the first ‘dirty’ space ship I had ever seen in a movie. I also drove my poor 4-banger Datsun like a space fighter home to the college dorm (like an idiot!)
FYI, on the same view of having dirty spaceships, anyone having an out-gassing incident when it affects Lord Vader or The Emperor, is just asking for a throat squeeze of death! Just saying!