Been a while since I've been on here...finishing school, finding work...
Anyways, I got a flyer in the mail from Autozone Rewards for $8 off a 1 gallon jug and $40 off a 5 gallon bucket of Rotella T6. Shell also has a rebate going for another month or so for $5 off a 1 gallon jug and $25 off a 5 gallon bucket at Autozone. I'm not sure if the coupons are linked to an AZ Rewards account.
Shell Rotella AutoZone Fall Synthetics Promotion - Shell Rotella
With both I can get a 5 gallon bucket for $69.99 or about $13.99/gallon. Both have a limit of 2. If you want to go the gallon jug route, it comes out to about $14.99/gallon.
Perfect timing as the 300D is coming up on about 7500 miles on its oil. Unfortunately the 642 in the Jeep needs 226.51 oil for the DPF otherwise I'd be buying as much as I can