Don't know about other brands.Only owned a jiffy 30 10"
It's on the 13th season.Haven't changed the plug,run it on low grade.Don't even store
it properly most years.their Is one thing,I only run one type on oil.Which is a low ashe formula.
With the oil being a performance product. I choose to run a 20:1.
When it doesn't start on the first pull.It's some thing I forgot to do.