The biggest problem we see with radiators, is when there is an aluminum core with a plastic tank on top. Over time, the plastic will crack due to expanding and contracting. The radiator leak is often a sign that the entire unit needs to be replaced.
Different mixtures of antifreeze are based around specific vehicles. You need to use the proper antifreeze to prevent corrosion, leaks, and other issues in your radiator and engine.
If there is a leak in the radiator rather than the hose, it may be very difficult to spot. You may see small bubbles start to form around the radiator reflecting a small leak. This is always a sure sign that there is something serious going on that you need to have checked out.
Make sure you call us to properly maintain your radiator.