Inconsistent product

Reviewed by spiderlegs from Taos, NM on Sunday, January 3, 2010
I've purchased MANY of these from STP over the years. They used to work MUCH better. Now they seem very inconsistent. Much of the time they barely heat up and don't last very long. I've returned some orders that were duds. Even though the ones I still have are well within their expiration date, they still only work once in a while. I wish STP would get a more consistent product.
  • Pros: Compact
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