If it were my money and the warranty was still good I'd trade for a yellow top too if that was the only way to get the warranty money. My red top is still under warranty and thinkin of returning it to costco and taking the cash to autozone and get one of their AGM 34/78 :nod: because costco does not carry them or any AGMs, plus I have 40 bucks autozone rewards tooStill looking. I would only consider Optima Yellowtop because I got a near dead redtop that I would exchange for. And it's a deep cycle too. Haven't had a deep cycle battery but may help in the long run. I'm looking into Sears Diehard also. The 3 year warranty is great.