Gary H. wrote: > > We had a discussion here a while ago on break-in oil. The most recent > Mopar Enthusiast magazine has an article on oil in general. The article > says to always use oil with zinc for our old cars, not just to break in > the engine. > Good article,Gary.I'll keep my eye out for the service rating change. Also couldn't agree more with Earl.I run Mobil Delvac 1 full synthetic in my truck and cars after the 500 mile break-in.The truck goes 10K miles between changes.I also add EOS to the Delvac 1 in the car's engine.I've never had a cam or oil related failure. The need for a heavy zinc pack has decreased over the years as more newer engines have gone to roller cams.Diesel oils were always a safe bet when looking for the maximum protection,but couldn't be used in cars with cats.And as Earl said GM EOS is still available.BG products still has a zinc additive as well. Dave Walters Denver, Co. ---- Please address private mail -- mail of interest to only one person -- directly to that person. I.e., send parts/car transactions and negotiations as well as other personal messages only to the intended recipient, not to the Clubhouse public address. This practice will protect your privacy, reduce the total volume of mail and fine tune the content signal to Mopar topic. Thanks! '62 to '65 Mopar Clubhouse Discussion Guidelines: http://www.1962to1965mopar.ornocar.org/mletiq.html.