(checked 2026-10-10)
Popular Mechanics' best gas trimmer: about 12 lb fueled, lighter than most gas models, nimble and powerful. Amazon owners say it starts easily, but reliability is a common complaint (some units won't stay running). Gas means fuel mixing, noise and maintenance, and Wirecutter no longer recommends gas trimmers.
In the box: Not applicable: 2-cycle gas engine (50:1 fuel mix). Popular Mechanics says it comes with enough oil to mix one gallon of gas.
Top complaints
- Reliability problems
Reliability is mixed in Amazon's summary and is the most-mentioned aspect: some units work well out of the box, others won't stay running. Durability is also mixed, with one report of a break after 3 hours.
- Gas hassles
It needs a 50:1 oil-and-gas mix (Popular Mechanics). Gas trimmers are louder and need more maintenance, and Wirecutter no longer recommends them for homeowners.
- Auxiliary grip can loosen
Popular Mechanics' auxiliary grip shook loose more than once; it tightens back with a wing nut.
What owners love
- Easy starting
Amazon owners say it consistently starts within the first few pulls.
- Powerful for its weight
Popular Mechanics calls it nimble and says it 'packs a punch.' Amazon owners say it handles thick grass and weeds.
- Light for a gas trimmer, visible tank
12 lb with a full tank, lighter than most gas trimmers. The fuel tank is visible while you work, so you don't run out by surprise (Popular Mechanics).
- You want low noise and no fumes
- You don't want to mix fuel or maintain an engine
- Your area restricts gas lawn equipment
- Properties of an acre or more
- Unlimited runtime (refuel in minutes)
- Buyers who prefer gas engines
Scores (tap for why)
What experts say
- Popular Mechanics (best string trimmers): Best gas-powered trimmer: an excellent entry to gas tools, light, well balanced and strong; the auxiliary grip shook loose at times.
- Wirecutter (NYT): Wirecutter no longer recommends any gas trimmer, saying cordless models are quieter, need little maintenance and are strong enough for homeowners. It did not test the 122L specifically.