Regular Unleaded Prices in Boise, ID

Updated April 5, 2026 — Prices updated regularly from EIA data

$3.23

Regular Unleaded (87 octane) per gallon

About Regular Unleaded in Boise

In Boise, Idaho, the pump price for regular unleaded stands at $$3.23 today. This is the workhorse fuel grade that powers the majority of America's 280 million registered vehicles.

When to Use Regular Unleaded

Best for: everyday driving

Vehicle types: most cars and trucks

Fuel Price Comparison in Boise

Fuel TypePricevs. Regular UnleadedOctane
Regular Unleaded THIS PAGE$3.23—87
Premium Gasoline$4.03+$0.8091-93
Diesel Fuel$4.37+$1.14N/A

Regular Unleaded in Nearby Cities

Meridian$3.38Nampa$3.10
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Frequently Asked Questions

TOP TIER certification means the fuel exceeds EPA minimum detergency standards. Studies suggest TOP TIER fuels meaningfully reduce engine deposits vs. minimum-standard fuels. Most major brands (Shell, Chevron, BP, Costco) are TOP TIER certified.
Mixing grades is generally fine in practice — your engine's knock sensors will adjust timing accordingly. If your vehicle requires premium and you add some regular, no immediate damage occurs. Consistently running below the required octane in a performance engine is not recommended long-term.
{octaneInfo} Octane rating measures a fuel's resistance to premature ignition (knock). Standard regular is 87, mid-grade is 89-90, and premium is 91-93 in the United States.
Use GasBuddy and filter by fuel type to see current Regular Unleaded prices at stations near your location in Boise. Warehouse clubs and high-volume discount stations typically offer the best Regular Unleaded prices.

Related Gas Price Pages

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