Every Friday, Lynda Steele dips into the viewer mailbag to answer your questions. This week, Steele on Your Side, takes a closer look at transporting fuel and a mouthwash that can turn your teeth brown.

Transporting fuel

Jerry wrote CTV Vancouver after seeing dozens of people filling up extra canisters with cheaper gas in Point Roberts. Jerry wants to know whether the risk of improperly carrying gas containers in your vehicle will void your insurance in an accident.

ICBC told Steele on Your Side that having extra gas containers in your car will not void your insurance.  However, you could be stuck with a large liability cost in the event of an accident.

Transporting flammable gases incorrectly poses a serious risk on the road, and ICBC warns people that they need to have the right amount of third-party liability coverage.

Tooth discolouration from mouthwash

A mouthwash that leaves brown stains on your teeth? Steele on Your Side reported on the unappealing side effects of Crest Pro-Health rinse more than two years ago, but the story still has our viewers talking.

CTV News contacted Crest to see if there was any update on the issue. It told us that all mouthwashes can contribute to tooth discolouration and can actually be a sign that the product is working. 

After the rinse kills germs in your mouth, the dead germs can collect and create brown spots on the surface of your teeth. Crest says it only happens in a small percentage of people.

But two years later after our first story aired, we're still getting comments from viewers who say the same thing has happened to them. Crest is offering refunds to unhappy customers.