Interstate used to be the battery to buy. My last one lasted 2 years and 2 months just out of the warranty. I have a friend for 20 years who runs a shop and he's going to stop carrying Interstate because too many of come back. My current 1970 Dodge an Optima. No issues approximately 4 years old. If it goes south, I will either by another Optima, which are pricey but work well. Or AutoZone with a 3-year full warranty after that is prorated.