Leaf Blowers

I have had my Model 125B for 2 years...a gift from my kids. It worked fine until last fall when it started cutting out and then not starting at all. I have always started Spring with a new sparkplug, new gas and Husqvarna oil mixture and so on. I took it to an authorized dealer today and he said that Husqvarna has been giving him problems covering this type of thing. The carb gets gummy and they blame it on the gas. I used good gas and have not abused this blower. It is well maintained. He told me they started recommending a gas/oil mixture sold in a can that costs like $7-8. This supposedly allows you to extend the warranty. This didn't exist when I got my blower and I would like Husqvarna to take care of the problem. Please send me authorization to have this problem taken care of.