I Tested Spark Plugs for My Mercruiser 5.7: Here’s Why They’re the Ultimate Upgrade!
I’ve always been a firm believer that a well-maintained engine is the key to smooth sailing on the water. As an avid boater and owner of a Mercruiser 5.7 engine, I understand the importance of keeping all components in top shape. And when it comes to ignition, there’s one crucial element that can make all…