Updated April 5, 2026 — Prices updated regularly from EIA data
$4.33
Premium Gasoline (91-93 octane) per gallon
About Premium Gasoline in Evanston
Drivers in Evanston filling up on premium pay $$4.33 per gallon today. This grade's higher octane rating allows engines with higher compression ratios to run at full power without detonation.
All Premium Gasoline sold in Evanston must meet minimum federal standards. TOP TIER certified stations add extra detergency additives. Most major brands (Shell, Chevron, Costco, Wawa) are TOP TIER certified. Non-certified independents meet legal minimums only.
In Evanston, Premium Gasoline is priced at $$4.33 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.
Follow your owner's manual recommendation regardless of whether the car is new. Engine break-in does not require a specific fuel grade. Use what the manufacturer specifies from day one.
