How big is the gas tank on a 1991 Chevy s10 Blazer?
The gas tank on a 1991 Chevy S-10 Blazer typically holds about 21 gallons (approximately 79 liters).
Across the 1991 Blazer lineup, GM offered several engine choices on the GMT400 platform, but the standard tank size is commonly cited as 21 gallons. Exact capacity can vary slightly due to factory options, measurement rounding, or aftermarket alterations. This article outlines what to expect and how to verify the figure for a specific vehicle.
Tank size by configuration
Below is a concise look at how the tank size is represented across common 1991 S-10 Blazer configurations. The goal is to reflect the typical factory specification while noting that minor deviations can occur.
- Most common 1991 S-10 Blazer configurations use a 21-gallon (79-liter) fuel tank.
For an exact figure on any given vehicle, consult the data plate on the fuel tank, the owner's manual, or a VIN-specific GM service document, especially if aftermarket equipment was installed.
Understanding practical range and maintenance
With a 21-gallon tank, the practical driving range depends on engine choice, vehicle condition, and driving habits. Real-world mileage on older S-10 Blazers varies, and fuel range is influenced more by efficiency and maintenance than by the tank size alone. Regular maintenance of the fuel system and correct tire pressure can help ensure consistent performance.
How to verify the exact capacity for your truck
To confirm the precise fuel tank capacity for a specific 1991 S-10 Blazer, consider these steps:
- Check the factory data plate located on the driver's side door jamb or near the fuel filler neck.
- Consult the owner's manual or original sales literature for the vehicle.
- Refer to VIN-specific GM service manuals or parts catalogs, which list tank capacity by model and option package.
If you’re dealing with a modified vehicle or aftermarket accessories, the capacity may differ, so verifying with a reliable source is advisable.
Summary
In short, the 1991 Chevrolet S-10 Blazer generally features a 21-gallon (about 79 liters) fuel tank across its common configurations. For exact figures on a particular truck, rely on the data plate, the owner's manual, or VIN-specific service documentation. Understanding the tank size helps estimate range and plan maintenance, especially on an older SUV where fuel economy varies with condition.
