I was making a delivery to BIG LOTS last week, when I noticed on the automotive shelf, next to the ice scrapers and the HEET gas treatment, a black and red bottle with a logo that really caught my eye, our beloved Cummins "C". It is Cummins premium plus diesel fuel additive. It is a lubricity/cleaner additive that is in a 32 oz. bottle. It even says Columbus, IN, 47202 on the label. Has anyone used this before? Reason I ask is because there were over a dozen bottles on the shelf, all dusty, and were only GET THIS- $1. 50 per 32 oz bottle. Compared to some of the other additives out there, this is extremely inexpensive. One quart (32oz. ) treats 125 gallons. So, rough estimate, 30 gallon tank / 120 gallons of tratment= 4 tanks per bottle.