I've been buying Kirkland batteries for my Ford Expedition for the last 8 years or so. I unfortunately have had to replace the battery on average every 2 years. Today my Expo wouldn't start after leaving my emergency lights on for a few minutes. So that means that tomorrow I will be heading to Costco as usual every 2 years to return the battery and get a full refund and buy a new battery and most likely just pay the difference. It will be the 4th battery replacement in 8 years. It's very irritating to have this happen every 2 years but the only thing good about it is that Costco has never questioned or refused to refund me. It's always been a smooth transaction with hardly any questions if any. I hope that these Interstate batteries will last longer than 2 years.