I just invested in a very nice 2-cycle string trimmer and I want it to last. I have always used stabilizer in my fuel for my 4-cycle lawn mower. I know that ethanol attracts moisture and the stabilizer does not let the water separate and sink, thus rusting out components. I also know that ethanol used to break down seals and fittings, but that manufacturers use better material now that are okay in the presence of ethanol.
Is using a fuel stabilizer and mixing the oil myself just as good as using an ethanol-free fuel? I have read some reviews of the pre-mixed fuels where a lack of lubrication (caused by quality control at the manufacturer plant) have caused pistons to seize up in the cylinders.
I don't care about the cost of the pre-mixed fuel as I wouldn't use much in an entire season; the question is more about the benefits and risks.