Originally Posted by truckernix
The comments about the Cadillac Northstar engine are interesting. A friend of mine has had one for a number of years. He gets about 500 miles to one litre of oil. GM has told him that this isn't a problem!
He just needs to stop buying metric oil. Cadillacs are made in the USA, man!(And Mexico maybe.)

1952 5-window - return to "as built" condition | 1950 3100 with a 235 and a T-5 transmission