First let me say this "coupon" to save some money on a dealership oil change seems like a joke.
Maybe it will cover your sales tax. :)
>> $10 off Shell Rotella T6 5w-40 oil change up to 13 quarts. - See Attached PDF
* Includes DEF top off up to 2 gal. | Expires March 31, 2017...
Just got this in my inbox today
Adv Auto Parts is having a sale on the new Shell Rotella T6 oil - on sale for $22 / gallon (Save $8.00)
Shell Rotella T6 5W-40 Heavy Duty Full Synthetic Motor Oil (1 Gallon) 550019921: Advance Auto Parts