50:1 or 2% Oil Mix Cup
This 50:1(2%) ratio measuring cup could perhaps be the handiest item a scooter enthusiast can have in their trunk. This shows you the right amount of oil to add to 1 through 5 liters of gas, or 1 gallon, 1/2 gallon, and 1/4 gallon of gas for a the perfect 50:1 (2%) mix ratio.
Measure one and a half times for 33:1 or (3%) mix ratio.
Measure twice for 25:1 or (4%) mix ratio.
It's small enough to fit in the glove box of most scooters when you're ready to hit the road.