How big is the gas tank on a 1998 Chevy Astro van?
The typical fuel tank capacity for a 1998 Chevy Astro is about 25 gallons (95 liters). Some dealer literature and regional catalogs list a 26-gallon (98-liter) capacity for certain builds.
What this means for owners
Most Astros from 1998 share the same basic fuel tank design. Official specifications commonly cite 25 U.S. gallons (94.6 L). A smaller number of references note 26 gallons for particular configurations or regional variants.
Because capacity can vary slightly by production run, trim, or the inclusion of options such as a spare tire well or tow package, always verify with the vehicle’s window sticker or GM service data for a precise figure on a specific van.
Capacity by configuration
Before listing, here is a quick reference of the commonly cited figures by configuration.
- Passenger van: typically 25 gallons (94.6 L)
- Cargo van: typically 25 gallons (94.6 L); some catalogs list 26 gallons (98 L)
- Notes: The 1998 Astro was offered with rear-wheel drive as standard and an optional 4x4; fuel tank capacity is generally the same across variants, though rare catalogs may show 26 gallons.
Conclusion for the list: In practice, expect about a 25-gallon tank for most 1998 Astros, with occasional listings showing 26 gallons.
Estimating range
With an average MPG in the high teens depending on configuration, a full 25-gallon tank typically yields roughly 400-500 miles of driving range under mixed conditions. Actual range depends on engine condition, driving style, and load.
Summary
The 1998 Chevy Astro generally uses a 25-gallon gas tank, with some sources listing 26 gallons for certain configurations. For most owners, this translates to a practical range of about 400-500 miles between fill-ups, depending on driving conditions and fuel economy.
What engine is in a 1998 Astro van?
V6
How big is the gas tank on a 1998 Chevy Astro?
25.0 gal.
How many miles per gallon does a 1998 Chevy Astro van get?
Is the Chevrolet Astro fuel efficient? All trim levels of the 1998 Astro get 16 MPG, with 14 MPG in the city and 18 MPG on the highway.
How big is the gas tank on a Chevy Astro van?
27.0 gal
Fuel & MPG
405.0/513.0 mi. 27.0 gal.
