Done with Delo 400
I have been an oil loyal most of my life. Growing up in a Texaco Distributor family I was weaned on Havoline motor oil. In 1994 I bought my first (93) Dodge/Cummins and used Delo in it and in 1996 I b...
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So I went to AutoZone and bought a 2.5 gal jug and a quart of new Rotella T 15W-40 for $43.16 with tax, $3.92+ per quart vs the Delo for 5 bucks a quart plus the extra fuel cost.
Rotella 15-40 is an excellent oil. The first fifty or hundred miles it has a sweet smell to it. That goes away. I have used it in my 91.5 Cummins, '01 Cummins, and now in my '05 with absolutely no issues. I also was a previous Delo user.
