dieseldonato
Veteran Member
Interesting, been using t6 in all my diesels for years now, save for a short time when I couldn't get it. Used delvac till I could get Rotella again. I haven't noticed any difference between the two as far as oil consumption. The car seems to take about half a quart between oil changes. (6k miles.) The truck doesn't use any and neither of the tractors use any either. I credit the cars usage to the poorly designed crank case vent systemLOL...Billy HD are nearly firm enough. I think I can tolerate their softness to get another set for the Golf, which is a wee bit on the soft/worn side.
@Judson my entire herd uses more Rotella between changes vs M1 TDT( or Delvac1). So I stick with M1 when ever possible.
Douglas