No. Do not put unleaded gas in a diesel tank.
DOT406 Tank Truck
When you mix regular unleaded fuel and unleaded plus fuel in a gas tank it results in a mixture of fuel with an octane rating higher that regular unleaded fuel but lower than the octane rating of unleaded plus fuel.
Premium unleaded. It says this on the gas tank cap.
17.7 gallon main unleaded fuel tank 14.7
The gas tank on a 1990 Chevy Corsica is 15.6 gallons. A 1990 Chevy Corsica takes unleaded gas not premium.
You will risk doing damage to the catalytic converter(s).
15.9 gallon main unleaded fuel tank
Nope you need to use the switch on the dash to switch tanks....
You can open the gas tank on an Infinite g37, as you would open the gas tank on any other vehicle. It is a rather simple process once you locate the switch. Pull the switch to open the tank.
you will have to drain the gas tank and flush the gas line with a gas line conditioner that you can get at a auto parts store.
check your fuel cut off switch, its under the right side dash.