Must be nice to get away with only 5 quarts... The new Nox V6 takes 6.. So I split a case of 12 for the Nox and the blue truck costing me about $25 each vehicle.
I bought two 5Qt jugs and will use the second jug as the "donor" to makeup the extra quart for a 6Qt oil change. This is the first vehicle I've ever owned that required 6Qts of oil. Kinda stinks. I'm used to 4.5 Qts changes and "banking" the 1/2 Qts for a future oil change.
So I guess it's costing me $24 + $3 (filter) per oil change for the Equinox. My "dino" changes for my other cars cost me about $13 ($10+$3) and last between 3000 and 3500 miles. So if I leave the Pennzoil in the Equinox for 6000 miles I'm calling it a "wash" cost-wise...