Optima make 3 Types..
Red Top: Cranking Power.
Blue Top: Marine Use.
Yellow Top: Cranking & Deep Cycle (accessories & auxiliaries)
Apparently the Yellow Top is the Battery of choice for Automotive use.
OPTIMA BATTERIES YouTube Video
Sam .....

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ofey wrote:@ Sam: Is it much heavier than the stock battery? Looks chunky!
sleeper wrote:check out the packaging mitch http://clubcj.net/viewtopic.php?p=201477#201477
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