1.79 is the diesel price. Google should have told you that the Tucson runs on gasoline.
The price with The Works is 1.18 / gsllon.
14 gallons x 1.18 is $32. So in this scenario you get a $16 wash for $2. Not a bad deal.
If I took my 2004 Ram 2500 (the Hemi, not the diesel) with a 34 gallon tank, I'd drive away with a full tank, a clean rig, and $10 in my pocket on that deal.
This beclowning of a sanctimonious progressive is now complete.