Ken, not sure what model you have but I got a recall notice from Stihl on mine. Took it to the dealer and the gas cap got changed. Never had another problem. Guys at the shop told me it was the Ethanol that was eatting at the cap. While I was there I changed my chainsaw fuel cap also.
Point of my post is - buy it from a place where you can get it serviced on the spot. Next time you're in Lowe's, HD or Sear's ask the clerk where the "service" department is. You'll get a blank stare.
I have Echo and Stihl products I bought from the local dealer. Are they more expensive than the Walmart, HD or Lowe's stuff. Yes.
I think most of my Stihl stuff is about 5 years old. I use fuel stabilizers in them and have never had an issue. I use the Kombi which allows me to change the tool while using the same engine. Very neat product. . .
Yep. I had three of those quick change gas caps replaced by the recall.
On one, I didn't use the machine a lot, and it was still ok. One was kind of a pain. The one on my backpack blower was so bad, I had to use pliers to get the cap off when the dealer was replacing it.
This is where you can find the details on the recall, btw:
http://www.stihlusa.com/information/recalls/toolless-fuel-cap/
I actually like the toolless caps, now that they don't get stuck. It's a pity that there was so much backlash against the defective ones, that Stihl went back to screw on caps, even though the recall solved the issue so well.
I always use Stihl's HP-Ultra oil which comes with built-in stabilizers, and then added Stabil. Didn't help with the gas cap, but my engines have been flawless over 7 years. Still start like they were new.
Stihl's big claim about not being sold in box stores is because they want to offer all of their customers personal service. That's also why you can't buy one of their machines still in the cardboard box. The dealer must open it, set everything up, and test it out, before it is sold.
I too love my Kombi tools.
I've got the KM-110 machine, the straight shaft trimmer (curved shaft tools are toys), the straight shaft edger, the articulating hedge trimmer, the pole saw, the carbon fiber extension, and the blower (which looks really weird, but which works REALLY well).