* Engine size: While it was a 6-cylinder, the exact displacement (e.g., 2.8L, 4.3L) matters significantly. The larger the engine, the lower the fuel economy.
* Transmission type: Automatic transmissions generally have lower gas mileage than manuals.
* Driving habits: Aggressive acceleration and high speeds drastically reduce fuel economy.
* Vehicle condition: Proper maintenance (tuned engine, properly inflated tires) improves mileage.
* Terrain: Driving in hilly or mountainous areas reduces mileage.
Therefore, I cannot give you a precise MPG figure.
However, you can expect city MPG to likely be in the low teens (possibly as low as 15 mpg) and highway MPG in the high teens to low twenties (maybe 18-22 mpg). This is a rough estimate, and real-world results could vary significantly.
To find a more accurate estimate, I suggest checking resources such as:
* The owner's manual: This is the best source for the manufacturer's estimated fuel economy.
* Online resources: Websites like Edmunds, Kelley Blue Book, or FuelEconomy.gov may have user-submitted data on fuel economy for similar vehicles. Search for "1986 Chevrolet El Camino fuel economy" specifying the engine size and transmission.
Keep in mind that these are estimates, and your actual mileage may differ.
