Which battery to go with?

I have a pretty solid history of getting 6-7 years out of interstate battery in all vehicles. Seems like they normally cost me about $120. I will say my dad and I both had to replace our original Deka batteries from our 05 and 06 silverados in 2018. Just outside of the 3 year warranty both of the interstate batteries failed in '21. We were not pleased when store owner wouldn't stand behind them and also admitted to a "bad run" from that time period. Claimed the new ones are supposed to be better. If they don't make 6 years I'll be looking elsewhere.

I have always seemed to find the original battery to last much longer than any replacement and cannot understand the theory of why that is.
Interesting. I too had an Interstate fail in that time period, just inside the warranty period in my case. First time I've had one fail at anything near that short of a time period; have always sworn by them, had one last 10 years+, blah, blah, blah. I'm still using them, but like you, another failure will have me looking elsewhere.
 
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-1 to optima… My yellow top just crapped out. Had it for 13 months. Picked up a superstart platinum from O'Reilly with cash they gave me for the optima warranty. Even had some leftover.
 
It was in the teens last week and I started my diesel tractor with the 13 yr old yellow top Optima with no battery issues. I had to cycle my glow plugs multiple times before it would actually start and had to crank quite a bit…..but the battery had no issues.
 
It was in the teens last week and I started my diesel tractor with the 13 yr old yellow top Optima with no battery issues. I had to cycle my glow plugs multiple times before it would actually start and had to crank quite a bit…..but the battery had no issues.

Makes sense, you’ve got one of the old optimas! The ones they make now just aren’t the same :(