AMEN!!! Do this and regular maintenance and you small engine will be fine. Use ethanol and get ready for never ending issues.
One of the small repair shops in my shop stop taking weedeaters about two years after ethanol was introduced into the gas supply on a country wide level. He would repair all the damage and they customer would go home and use it a couple of times and show back up in a couple of weeks demanding that it be repaired again, that he didn’t fix it correct the first time. So it was a never ending cycle of fixing these small engines on his dime.
Another Stihl dealer would repair only Stihl machines with the proviso they only use 100% gasoline. I had a craftsman weedeater that worked great for years. Along came ethanol and it was dead after one season. I bought a Stihl and have used only 100% gasoline and it is still going after six years.
The only thing I don’t understand is why it’s more expensive.