If you're storing your car and not using it over the winter, I also strongly recommend getting a small battery tender to keep it topped up. I've been doing so since I bought my Z back in 2010. Original battery still going strong.
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2012 Mercedes C63 AMG P31 Sedan, ROW, aFe, Eurocharged Dyno Tune. 438WHP/415WTQ
2010 SOLD: 40th Anniversary 370z
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