In reply to 27th Sep 2025, 18:03

29th Sep 2025, 13:35

The 4.5 did NOT last until 1998. 1990 was actually the last year and from 1991-1995 the enlarged 4.9 was used and required premium fuel. I owned a 1993 DeVille; "premium unleaded fuel only" message was on the dashboard & inside the fuel door.

In reply to 27th Sep 2025, 18:03

29th Sep 2025, 15:16

Thanks. That would have been an aftermarket moonroof as the factory would not install a sunroof or moonroof with that Cabriolet roof.

I'm not sure how that would work as the fiberglass topper made the roof too thick for a typical aftermarket moonroof, IMHO.