Mixing the correct ratio of gas to oil is essential for the proper operation and longevity of your weed eater. Using too much oil can cause the engine to smoke and run poorly, while too little oil can cause the engine to seize up. The correct ratio of gas to oil for a weed eater is typically 50:1, which means 50 parts gas to 1 part oil.
To mix gas for a weed eater, you will need the following: