CAT Gear Drives

AdamR said
The problem with oil is that they are taking out the addatives that help flat taooet cams survive. With 90% of new cars being rooler cams or roller faollowers they arent needed.

However Diesals still use flat tappet cams so Diesal oil still has the addatives.
All the diesels I have worked on, Cummins Caterpillar and Detroit have roller cam followers?