I did a search going back about 2 years and couldn't find anything on this. So is M1 TDT a true HDEO? Is it just rebranded Delvac 1 5W-40, or is it something aimed at only the consumer truck/SUV market?
Second question is how would TDT compare to the readily available 5w-40 HDEO oils that it's always marketed along side with (T6 & Delo Synthetic 5w-40 weights)?
Second question is how would TDT compare to the readily available 5w-40 HDEO oils that it's always marketed along side with (T6 & Delo Synthetic 5w-40 weights)?