You can order Mobil Delvac 1 5W40 right here from George Morrison @ www.avlube.com for $21 per gallon. I don't know about shipping cost. George is an awsome supporter of this site.
I bought mine from a local friend and dealer, otherwise I would not consider buying it from anyone else.
Edit: Sorry 6 2 Carl for misunderstanding. Looks like your $35 is Canadian currency. I was referring to US currency.
02 Chev 2500HD Dmax/Allison X Cab LB 4WD
Attitude, Monster Exhaust with Big Head, Michelin 265/75/16E LTX M/S on Alcoa Classics for summer hauling, Cooper Discover 238/85/16E M/S on PYO's for winter, B&W Goose Hitch with Companion 5th Wheel, Highway Products Tool Chest, Jordan Ultima 2020, Frederico sway bars front & rear, Air Lift SD Bags