Can anyone tell me if they last twice as long (or close to it) as a "standard" high-quality battery such as a Diehard?? I am trying to justify the price and if they only last 50% longer, it isn't worth it. Sure, there are the other corrosion factors, but that factor is not important to ME. I will pay more, but it needs to last more. Any high-quality battery will start my truck. An "optima" won't start it "better". Once it's started, it's started. But if a yellow-top lasts 8 years in Colorado (rare extremes in heat or cold), and someone can vouch for this, I'll be game!
Steve