I bought a new boat and motor in 2005 and right after I got it California decided to switch to E10 fuel here. Right away, I started having problems with my new Yamaha 4 stroke and ended up losing part of the salmon season getting the carbs fixed. This happened twice in the next year and I was to say the least a very unhappy boat owner. Yamaha suggested a number of things as a solution, one was to use an enzyme-based stabilizer, the folks at Englund Marine in Eureka suggested Star Tron® and since I started using it there have not been any fuel related engine problems with my motor. Going out across Humboldt Bay bar here on the Northern California coast can be very dangerous and the last thing I need is for my motor to crap out, Star Tron® insures that my motor will keep running when it counts. Bottom line is Star Tron® works as advertised and I wanted to say thank you for a fantastic product.
        - One of your happy customers, Jan Zeiters