Costco Kirkland batteries for the warranty. 4 year full replacement then prorated for the next 5 years.
Costco Canada sells the Kirkland Batteries. This is the warranty from their website.Did they change recently or are differences based on where you’re located?
Costco here (Utah) sells Interstate with a straight 3 year free replacement warranty. In fact I haven’t seen a battery with a warranty prorate in a very long time, pretty much all manufacturers have seemed to move away from that.

Walmart everstart platinum AGM. 36mo free replacement and never further than an hour drive to get it replaced.

At 112 MPH from Moab, Utah it's around 1 hour to the nearest Walmart in Cortez or Grand Junction, Colorado. Not sure what MPH is needed from Ely, Nevada to the nearest Walmart to within an hour. Small towns in the rural western Mountain States don't have Walmarts nearby.Bingo! The fact that I can count on a Walmart to be near within an hour drive of me while I am camping, hunting, hiking etc is huge.
IMHO not interstate. I’ve only been getting 3 years out of 94R’s from them, 2 in a row.
The Western Slope of Colorado where we reside is larger in size than the state of Pennsylvania with 162 Walmarts compared to our 14 Walmarts. Our nearest is a neighborhood Walmart. Doesn't stock batteries. It's 50 minutes/ 40 miles mountainous driving one way.On Average, 90% of the US is within 10 Miles of a Walmart... So I guess @Bull Creek is in the 10% that is not. Sorry about that, I guess you have beauty over proximity.
Lead acid (MTP)Well that sucks.. Lead Acid or AGM? I just put AGMs in my truck from Costco.