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This STP formulation helps clean your entire fuel system in order to restore it to its optimum operating condition. It contains jet fuel, a high-quality carrier of active ingredients.

Save on STP Complete Fuel System Cleaner 12oz with a AutoZone coupon

Checkmate is a savings app with over one million users that have saved $$$ on brands like AutoZone.

The Checkmate extension automatically applies AutoZone discount codes, AutoZone coupons and more to give you discounts on products like STP Complete Fuel System Cleaner 12oz.