j hancock

On the Delo/Rotella question, it's like religion and politics lol But I naturally have an anecdote! In 1978 I was fabricating a wet tank for my cousin's dump trailer,and we got into a discussion about motor oils.He asked what oil I used in my welding truck ( a c30 Chevy 350 ) I said Quaker State Deluxe.WTF are you putting that garbage in your engine for? He asked politely! He is a diesel mechanic and I think he also has an air frame license as well,so I respect his opinion on anything mechanical! He went into a 20 minute dissertation (fueled by several rolling rocks), on the virtues of Rotella T motor oil Cummins,Mack,Military,rated etc. He used to tune up all his neighbors cars,said several of them with sticking lifters and smoking exhaust(from short trips and low quality oil) were cured by one Rotella oil change! I've been using it ever since in all my vehicles and lawn equipment and have never had an engine failure.I use Castrol 0w20 in my wife's corrola because Rotella doesn't make it! In all fairness I think commercial fleets are equally divided between Rotella and Delo So my results may have been similar with Delo,I'm satisfied with rotella!