no longer a fan of Interstates, I buy the most expensive ones they sell and fail every 3 years. I used to be a dealer and they were the best....no more IMO...I have had other dealers tell me the same..the pro rate on 85 month equals buying other batterys. Their deler network has really shrunk making a warranty down day a real drag. I dont know who to recommend but my last interstates are my last.

 

I bought an F350 with a used interstate in it back in 04, blew the motor up a year later and the truck sat in my driveway for a year and a half with a dead battery. Put a motor in it and charged up the dead interstate, I drove the truck very occasionally untill December of 2012 when I sold it, same Interstate battery, still going strong. I'd say they are a pretty good battery.