1998 Chevy Lumina smell o burning metal and leakage

It's hard to say the color of the leakage it's been raining four five days here. What I can say is that the repair done before was because of corrosion to the engine which weakens the freeze out plugs. The plugs were replaced and the engine flushed with an additive put in for corrosion. I do understand that once corrosion starts it will always be. Flushing and adding an additive only remedies the problem for awhile. Back to the subject - leakage is minimal to the right side of the engine, car is driving okay and temperature is within normal range.