Put some dishwashing liquid in the mix ... it gets through the waxy coating ... just like it gets through grease on your dishes.
This. The detergent makes it "sticky" too. Good to use with RoundUp, etc, if you need it to stick to persistant weeds.
I use old fuel along the edges of the garden, kills the grass nicely and stops it from getting all through the gardens. If it's not too old though, I do this:
I mix some new fuel with the old and out it through the Mower. Up until now it hasn’t broken down on me.
How "old" are we talking here? Or do you just have no further use for the 2Stroke? If you've still got 2-stroke equipment, just tip the old stuff in when you mix up a new batch.
Thanks!
Matto