Prevents fuel gelling. Lowers pour point to -40 deg. F. Increases cetane to offer quicker and easier starts, more engine power, and better fuel economy. Additive package enables fuel to burn cleaner, reducing emissions. Offers lubricity that new, low sulphur diesel fuel formulations lack to reduce engine wear and extend engine life. Great size for diesel pickup trucks, diesel construction equipment, and diesel farm machinery. Treats 47 gallon. 12 oz. No. M6912: Size: 12 oz, Gallons Treated: 47 gal, Temperature Rating: -40 F, Pkg Qty: 1, Package Type: Bottle Thanks for shopping Hipp Hardware Plus's Online Store for all your DIY and Home Improvement needs. Remember Hipps Help!