I have used this bottle for my boat for 3 years and have found it very handy to get the correct mix for my motor which is 40:1. I just purchased 5 more bottles to mix gas and oil for my other 2 cycle motors which have 30:1 and 50:1 mixes. The remaining bottles are spares should I damage. These are a must for mixing oil form one gallon bottles that I buy for my boat and other engines.
(2 of 2 people found this review helpful)