Ask an expert

My Holden Cruze drips water from the seam in the end of the muffler. My Holden dealer says this is a common thing in modern cars and is caused by short runs and the cooler weather. Is this correct in your opinion ?
Bob Smith

Hi Bob. Yes, this is correct. In cold weather condensation builds up inside the muffler, which will blow out or dissipate when the exhaust gets hot and the car is given a decent run. In cars that only do relatively short, cold running the moisture is retained in the muffler.
It's not uncommon to see rusted mufflers on cars that have done a very low mileage, when higher mileage cars that have done a lot of hot running can often get longer life out of a muffler.