Review on Zerostart 310 0018 Engine Block Heater by Sean Lee

After trying this product, I am extremely disappointed in its performance. It claims to keep my car's engine block warm during cold weather, but it fails to do so effectively. Not only did it not work, but it also caused damage to my car's battery. The only positive aspect of this product is that it was easy to install. However, I would not recommend it to anyone looking for a reliable solution to combat snow and ice.