I would never argue with Paul. He is a GM master technican, but I'm wondering why the original (accourding to the current GM catalog is a 75 size battery, but to go one step futher, I picked the Optima because I was afraid of a developing a leak at one of the terminals on a AC Delco battery. AND I wanted to get a Gel or AMG type of battery. But with that in mind, when I worked in a shop, when we had a customer come in needing a new battery, we always put in the car a next in higher output battery and that was due as my boss pointed out is that as a cars electrical system gets older developes a resistance in the wiring through out the entire car. So if a cars original battery had a 650 CCA, we'd put in a 675 or 700 CCA. It's not going to affect the operation of the car, but there's a bettery backup in case it's needed. A lot of folks have either a great experience with Otima, or they hate the very word. But it's my experience that about 79% of these complaints stem from the owner installing a stereo or a Amp, and of course they used fifteen feet of Monster wire to string the whole catastrophe together. And once you hook up a battery charger to the car, the ouput needle shot all the way over to 14 volts. But that's just another "War Story" of mine. When the customer came back, he'd ask my boss if his car was fixed, my boss would say sure thing. The customer would ask what was the porblem? My boss would alway's say, "You car didn't need any one thing, it needed one of everything !". . . Oh and by the way, your radio is shot. Leave it alone or whistle to yourself."
