I'm speaking for myself, but Patman jump in any time. I've lived through many car and oil ages. My first vehicle was a 1958 Old's with a massive V-8. I then went to a 1961 Chevy, a 1966 Ford, a 1969 Ford, a 1970 383 Plymouth Fury 3,(great car!)a 1968 Plymouth, 1972 VW Beetle, 1973 Mustang, 1974 Mustang(mistake!) VW RABBITS, 1975, 1977, 1985 (gas crunch), 1980 Ford truck and various other newer vehicles, including my 2002 F-150. I guess what I'm trying to say is that as time goes on oil requirements DO change and we shouldn't be afraid to change with the times. Heck, if I was afraid to change I'd still be using SA, or the appropriate grade single weight oil that the 1958 Old's required. I may be old, but I still adopt to the current times.
Whimsey