Checking Your 7.4 Mercruiser Oil Capacity Fast
Finding the exact 7.4 mercruiser oil capacity is pretty straightforward, but you'll want to get it right to keep your boat running smoothly. Generally speaking, the 7.4L (often called the 454 big block) takes about 7 to 8 quarts of oil when you're also changing the filter. However, that number isn't always set in stone because of how different boats are set up, so it's worth digging into the details before you start pouring. ...