Quick answer
Many auto supply shops, fuel stations, and online retailers carry cetane boosters. Look for diesel-specific additives labeled “cetane improver.” Be sure to compare prices and read product labels.
Detailed answer
When searching for a cetane booster in your local area, keep your eyes peeled at automotive parts stores, hardware retailers, and even certain supermarkets with automotive sections. Many drivers also purchase these additives online, where you can read reviews and compare options. Smaller fuel stations or truck stops might stock diesel additives if they serve a lot of commercial traffic. Choose a product explicitly labeled “cetane improver” for diesel engines, and pay attention to dosage instructions. Some boosters also provide extra benefits such as cleaning injectors or improving lubricity. Whether you shop locally or online, a bit of research goes a long way. Pick a reputable brand, follow guidelines, and watch for improvements in cold starts, noise levels, and exhaust cleanliness.
