IMO, Optima is going downhill. I had a Red Top that only lasted just over 1 year when it crapped out on me. I had luck with Interstate batteries though (I had 2 and both lasted over 7 years each).
Back to the Optima topic, I also heard that to extend the life of your Optima (Both Red and yellow) that you occasionally need to use a charger like a ctek battery charger like this http://smartercharger.com/battery-chargers/#CTEK Multi US 3300 I never used this and MAYBE that is why mines crapped out on me?
Back to the Optima topic, I also heard that to extend the life of your Optima (Both Red and yellow) that you occasionally need to use a charger like a ctek battery charger like this http://smartercharger.com/battery-chargers/#CTEK Multi US 3300 I never used this and MAYBE that is why mines crapped out on me?