Updated April 5, 2026 — Prices updated regularly from EIA data
$2.70
Regular Unleaded (87 octane) per gallon
About Regular Unleaded in Olathe
Regular unleaded (87 octane) in Olathe, Kansas costs $$2.70 per gallon today. This is the most widely used fuel grade — over 60% of US passenger vehicles require only regular, making it the most competitive and price-sensitive fuel market.
Use GasBuddy and filter by fuel type to see current Regular Unleaded prices at stations near your location in Olathe. Warehouse clubs and high-volume discount stations typically offer the best Regular Unleaded prices.
All Regular Unleaded sold in Olathe must meet minimum federal standards. TOP TIER certified stations add extra detergency additives. Most major brands (Shell, Chevron, Costco, Wawa) are TOP TIER certified. Non-certified independents meet legal minimums only.
In Olathe, Regular Unleaded is priced at $$2.70 per gallon versus ${regularPrice} for regular — a ${diff} per gallon premium. On a 15-gallon fill-up, that's ${fillDiff} extra. Over 50 annual fill-ups, the premium adds ${annualDiff} to your fuel costs.
If your car requires premium and you accidentally fill with regular, modern engines have knock sensors that retard timing to prevent damage. You may notice reduced performance and slightly worse fuel economy. Fill with premium on your next fill-up. This is a minor issue if it happens occasionally.
