Costco Gas Prices in Fullerton, California
Fullerton · Warehouse #418
900 S HARBOR BLVD, Fullerton, California 92832-3025
Prices updated: September 5, 2026 at 10:00 PM
Regular
$5.369
PRICE PER GALLON
Press
Premium
$5.739
PRICE PER GALLON
Press
Current gas prices at Costco #418
This Costco gas station is located at 900 S HARBOR BLVD in Fullerton, California. The latest reported fuel prices are regular at $5.369/gal, premium at $5.739/gal. Prices were last updated on September 5, 2026 at 10:00 PM.
Get directions to this Costco gas station30-Day Price History
30-day change
Regular
$5.369+0.270 (5.3%)
Premium
$5.739+0.260 (4.7%)
DateRegPrem
Sep 5, 10:00 PM$5.369$5.739
Sep 5, 9:00 PM$5.369$5.699
Sep 4, 4:00 PM$5.359$5.659
Sep 3, 8:00 PM$5.299$5.599
Sep 3, 4:00 PM$5.279$5.579
Sep 2, 3:00 PM$5.259$5.559
Sep 2, 9:00 AM—$5.559
Sep 2, 8:00 AM$5.259$5.559
Aug 31, 4:00 PM$5.199$5.559
Aug 30, 3:00 PM$5.199$5.499
Aug 28, 5:00 PM$5.159$5.499
Aug 27, 5:00 PM$5.129$5.479
Aug 26, 10:00 PM$5.099$5.459
Aug 23, 4:00 PM$5.069$5.399
Aug 22, 3:00 PM$5.059$5.359
Aug 18, 5:00 PM$4.999$5.359
Aug 16, 7:00 PM$4.959$5.259
Aug 14, 10:00 PM$4.999$5.299
Aug 13, 3:00 PM$4.959$5.259
Aug 11, 10:00 PM$4.959$5.299
Aug 9, 6:00 PM$4.999$5.399
Aug 7, 7:00 PM$5.099$5.479