Which is better?? Optima Red or Yellow??
Last edited by Jantzer98SS; Mar 2, 2008 at 10:27 PM.
The important things you want to look at are the CCA and reserve capacity (RC). If you don't mind the extra weight, I'd recommend the 34/78 size...it will fit with a little persuasion, and will put out better numbers in terms of CCA and RC than the stock sized replacement (which is a 75/35 or something along those lines) at the expense of the extra weight.
If you aren't necessarily stuck on Optima, Diehard (Sears) makes a pretty good battery...their platinum 34/78 is what I have in my car, and has better numbers than either Optima, and carries one hell of a warranty. It is made using AGM construction, so no leaky leaky either (like the Optima).
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I don't agree the red top is better for a car. Too broad a statement. The yellow top you don't have to keep up on it if you don't drive your car much.
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My current red top is in its third car, still going strong, outlasting its 4th alternator now.
You would want to use the yellow top if the car sits for long periods. It is also a good one as a second/stereo battery or if you have a system and listen to your tunes with the car off for long periods.
For 99% of folks, red top is the way to go.
Just my personal experience, and that of a number of friends.







