How much does this cost to the nearest dollar?

Opti-Lube XPD All-in-One Diesel Fuel Additive 5 Gallon Pail and Accessories (Metal Pump and Regular Accessory Bottles)
This is the tool that every trucker, mechanic, or diesel-vehicle owner needs. There are several benefits to using Opti-Lube XPD Formula Diesel Fuel Additive. This handy additive increases lubricity, improves fuel mileage, keeps your tank clean, and enhances your truck’s performance. Over time, build-up and residue occur within your fuel injectors, which decreases your truck’s efficiency. As this additive lubricates your fuel injectors, it helps reduce fuel system wear. This, in turn, creates a cleaner tank so that you can enjoy improved fuel mileage and a better running engine. Additionally, this additive prevents future build-up.

Price is $387.00
Price: $387.31