Posted 5/8/2016 20:30 (#5289222 - in reply to #5289207) Subject: RE: Any old Cadillac experts here?
NW Central Ohio
...I don't think so, they went with the huge cubic inches because the smog motors of the day all had low compression...so more than likely it doesn't need premium. My grandmother had a lime green '73 Eldorado...that wuz one sweet old ride!!!