Norwegians 15 737-MAX8 are of course still grounded. No airline is "cheating" and flying with a grounded plane.
The planes are very similar (which is the whole selling point). That's why they can use the same safety instructions, which is probably where you saw the text "737-800/737 MAX8" printed. As others said, they are most easily told apart by the different look of their wing tips.
The planes are very similar (which is the whole selling point). That's why they can use the same safety instructions, which is probably where you saw the text "737-800/737 MAX8" printed. As others said, they are most easily told apart by the different look of their wing tips.