It depends on the brand of trimmer you bought.
Stihl, Echo, Husqvarna use 50:1, or 1 gallon of GAS to 2.6oz of 2-stroke oil
Weed Eater, Poulan, and Poulan Pro use 40:1, or 1 gallon of GAS to 3.2oz of 2-stroke oil
Ryobi's use 32:1, or 1 gallon of GAS to 4oz of 2-stroke oil
1 gallon of GAS to 3.2oz 2-stroke oil or 2%
oil to gas ratio for weed eater
What type of oil does weed eater or7000
Look in the operator/owners manual for the exact measurements for your weed eater. Pretty much everything is a 50:1 gas to oil ratio that I have ever used
40:1
2.6 ounces of oil per gallon of gas. A 50 to 1 ratio.
2.56 oz. to one gallon
newtest3
If you use Stihl genuine two stroke mix, then the ratio is 50:1 eg 500ml to 25 litres fuel
50:1. Be sure to use 2-stroke oil.
40:1
The majority of the internet says 50:1