Let's be real here. The Safety-Kleen is a "good" oil. Just because some guys on forum decide it is not good oil does not hold any water in the real world. I would not hesitate on using any HDEO alone. Maybe you guys can add the "good" oil symbol to my containers? I feel that I would sleep better if you did...
Also, I use the Klondike, Rotella, Delvac, ect HDEO's as they are all "good" oils for a classic Pontiac. And adding zinc to oil has been done since the beginning of time with no issues. There is nothing really wrong with using a LDEO either I suppose.
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