When I first bought my 72 280SE 4.5 the radiator blew two miles down the road. So I parked it overnight and the next morning at 5:30 I drove the half mile to the radiator repair shop in the freezing cold. Half way there the speedometer started up with this horrendous howl like it was coming out of the dash, scaring the hell out of me and making me wonder if buying this thing had been such a good idea. It quit being so loud with more frequent driving but lubing it probably wouldn't hurt.