... I have two blue tops right now on mine. So far I love them. They are only 18 mos. old though, but I would buy them again. When my Cranking battery goes, I'm going to put a yellow top on the engine. They ain't cheap but ... ? I also like the big Delcos, a 30 series Marine if you can find it and the Sears Platium Marine. I think all of them are about the same price.