Customer Portal Become a Customer 1-800-FAST-OIL HomeDEF Diesel Exhaust Fluid (DEF) Corrigan Oil is the premier Blue Cap (DEF) diesel exhaust fluid distributor in Michigan, Ontario, Northern Ohio and Northern Indiana. We combine great supply, high quality product that is enhanced by our highly specialized delivery equipment and staff. Blue Cap LLC has received certification of its Blue Cap Diesel Exhaust Fluid from the American Petroleum Institute (API). The certification recognizes that Blue Cap DEF meets the stringent quality standards that engine manufacturer service warranties require. DEF is an aqueous urea solution used in Selective Catalytic Reduction (SCR) that reduces diesel exhaust emissions into nitrogen, water and carbon dioxide (CO2). Our Whitmore Lake, Michigan facility provides Blue Cap DEF in bulk, as well as, packages ranging from 2.5 gallon bottles to 330 gallon totes. Corrigan Oil offers the complete Diesel Exhaust Fluid solution. In addition to DEF, we can provide a variety of pump and tank systems depending on your individual DEF needs. Hand Pumps Electric tote and drum pumps Bulk tank systems DEF metering systems Retail approved DEF installations RACE FUELS Corrigan Oil Company is the Official Sunoco Race Gas distributor in Michigan, Indiana and Illinois. LEARN MORE > > FUELS/LUBRICANTS Fuels Lubricants DEF Residential Fuel Oil Gas Stations Agriculture PROPANE Residential Propane Commercial Propane Temporary Heat Agriculture TOWING/HEAVY HAUL Services Become a Customer Map of Service Area Reviews/Photo Album Certificates/Reference/FAQ SPECIALTY SERVICES Specialty Fuels FuelCloud GENERAL Careers Customer Portal Terms of Service Certifications & Licenses Contact/Location News © 2021 Corrigan Oil. All Rights Reserved. Privacy Policy. Website by Determined.