FWIW, I talked to the Optima guy at a trade show last year. His advice was to use Yellow Top for race car applications where the car would sit for long periods [long compared to a street car] between uses.
Also, don't use a standard lead-acid style battert charger on these or other similar batteries. Buy one of the CETEC smart chargers, and use the * setting.
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Tony K
PCA Potomac, Rennlist Member
89 944 Turbo
85 Carrera - Sold
TrackVision
944Cup
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