On Thu, 23 Oct 2008 23:59:07 +1000, "Fred" wrote:

I have a 2-stroke mower (Victa) and bought a petrol line-trimmer (Talon).

I've been using Victa's Formula-V oil for the mower at the recommended
petrol-oil ratio of 50:1. For non-Victa oils, Victa recommends 25:1.

The line-trimmer requires 25:1.

Is it safe to use the Formula-V oil at 50:1 on the trimmer?

Put it this way, if you use too much oil it will smoke a bit and may foul a plug (which can be easily cleaned and reused). Too
little oil and the engine will die. Permanently.

So use 25:1