Quick answer
You can buy cetane boosters at auto parts stores, some fuel stations, and online retailers. Look for diesel-specific additives marked “cetane improver.”
Detailed answer
Cetane boosters are widely available in automotive supply shops, hardware retailers with car sections, and many online platforms. Simply head to the store’s fuel additive aisle or search “cetane improver” online. Compare brands, dosage instructions, and user reviews to find one that suits your engine’s needs. Some boosters also include lubricity enhancers or cleaning agents to maintain a healthy fuel system. If you prefer a hands-on look, a physical store lets you read labels in person. Online options, meanwhile, offer convenience and the chance to see feedback from fellow drivers. Whichever route you choose, follow the recommended dose when adding to your fuel for best results.
