Not sure if this is the right place... feel free to move it thanks...
Anyway I been working at autozone part time for a few months. Yesterday im looking through our flyer and notice delvac oil on sale for like $13 /gallon. Not a bad price, but I can get that at walmart. One other brand was shown too.
Then I read the fine print below and see it says Mobil 1 Turbo Diesel Truck 5w40 is included in the sale.
I grabbed 2 gallons and scanned them - $26 each. Then i sub-total it and it applied the sale -- sure enough, Full Synthetic Mobil 1 5w40, same price as Delvac...
This might or might not be national. But its worth a look if you need an oil change. Almost half price. I am considering trying it but afraid of oil leaks... I usually run the cheapest 15w40 i can get and 2 bottles of STP just to help prevent leaks...