There is a lot of counterfeit Frontline coming in from overseas. I buy only from USA sellers. Use the ask seller a question feature to find out: What is the country of manufacture?(It's on the back of the box)...
Ads are starting to appear regularly for Mercedes Diesels converted to vegetable oil.At least one seller has the "conversions" done in Mexico. He only reveals this reluctantly. I would like to see a dialogue...