Read Description View Manufacturer Info & Data Sheets View Additional Sizes Browse Equivalent and Related Products Johnsen's Octane Boost | 12/12 Ounce Case Johnsen's $19.45 3442 Lucas Octane Booster | 12/15 Ounce Case Lucas Oil $73.20 5061 Description Manufacturer Info & Data Sheets Videos Articles 0 Reviews STP Octane Booster, 12/5.25 Ounce Case is a two-in-one formula that boosts octane and cleans the fuel intake system to restore lost performance. Safety Data Sheet There aren't any reviews yet. Write a Review. The Difference Between Cetane and Octane Customers Also Viewed Lucas Octane Booster | 12/15 Ounce Case Lucas Oil $73.20 Johnsen's Octane Boost | 12/12 Ounce Case Johnsen's $19.45 Star Tron Enzyme Fuel Treatment | 6/8 Ounce C… Star Brite $29.95