The Maxim Gorkiy and the QE2 -the worst heavy smokers- were not always so welcome guests in some of the Norwegian fjords - after some hours all the fjord valley was full of grey-blue smoke and a heavy smell of diesel... ;-)
Oh yeah! The ship was always very elegant -perhaps not in her last green German livery- I just recalled the "smoke antagonism" the local Norwegian fjord villages had against some specific very "smoky" ships like the "Max" and "QE2", which were quite outstanding in this matter... They often spoiled the passngers' chance to take good photos - there was too much blueish smoke and black soot in the calm air...
I guess the smoke came from the old engines as she was the T.S.S. QE2 and not m/s QE2 - possibly when they were both (also T.S.S. NORWAY) steam turbine ships - they demand very much oil compared to motor ships on diesel machinery - the turbine steam ships really doomed themselves out of the business in the late 1990's and our 2000's - like the "Max" here and the Norway, as well as the old SKY PRINCESS, the last known steam turbine ship built ended up with P&O 1984 -also scrapped as too thirsty nowadays.
I know when little steamer APOLLO III (b. 1962, some 4 300 grt) as Cruise ship in the Baltic changed from steam boilers to diesels, they could cut the fuel consumption from some 20 tonnes per day to just some 4 tonnes when she turned m/s APOLLO III - later known from late 1980's as the Thailand based ANDAMAN PRINCESS - I wonder what happened to her finally?
in 1986/87, QE2 underwent one of her most significant refurbishments when she was converted from steam power to diesel. Nine MAN B&W diesel electric engines, new propellers (and new equipment to capture heat expelled by the engines) were fitted. With her new propulsion system, QE2 was expected to serve another 20 years with Cunard. The passenger accommodation was also modernised.