To access the plug 2, Fig. 15 of the fuel tank, open the cover 1 on the right side of the car. The plug opens by turning it counterclockwise. Tighten the plug clockwise until you hear characteristic clicks. In the variant version of the cars, a special leash connects the plug to the body.
Warning. Gasoline and its vapors are poisonous and flammable! Observe safety precautions and fire safety rules! Avoid contact with skin and clothing, and avoid inhaling gasoline vapors. When refueling a vehicle, avoid gasoline contact with paintwork and rubber products.
(The article is reprinted from the website: «chevyman»)