Gas mileage for 1994 4.3 6 cylinder G20 Chevy Van?

The gas mileage for a 1994 Chevy G20 van with a 4.3L 6-cylinder engine will vary significantly depending on several factors: driving habits (aggressive acceleration, frequent braking, etc.), vehicle condition (tune-up, tire pressure), terrain (city vs. highway), and the van's load.

However, you can expect generally poor fuel economy for this vehicle. Real-world figures would likely fall somewhere in the range of:

* Highway: 15-18 mpg (miles per gallon)

* City: 10-13 mpg

Keep in mind these are estimates. Actual mileage could be higher or lower. Checking online forums dedicated to Chevy G20s or similar vehicles might reveal more specific user experiences.