Sold my duramax and no longer need these.. All 3 are new old stock from 2 yrs ago.

Enhance the performance of your diesel engine with this Peak Blue Diesel Anti-gel & All Season Diesel Cetane Boost Additive. Designed to improve the fuel efficiency and prevent engine knocking, this additive is perfect for all seasons and is compatible with most diesel engines. With a 16 oz volume, this additive is easy to use and comes with a manufacturer part number of BDASDB32. It is perfect for those looking for a reliable and efficient diesel treatment.