Is Mobil Delvac the same as Rotella diesel oil? I hear a lot about Rotella but AutoZone has Delvan 15W-40 on sale for $12.99 until Monday, regularly $17.99 for a gallon.
Can I use diesel oil in the V-drive transmission or should I use regular 15W-40?
What is the differences between diesel oil and regular oil? Does Diesel have more zinc in it? Is diesel oil non detergent, and if so what does that mean.