Star Brite Star-Tron Diesel Enzyme Fuel Treatment - 32 oz

Why you'll want it

• Keeps stored diesel steady. It stabilizes diesel for as long as two years, which suits fuel that waits in the tank. It can also refresh older fuel.
• Clears gum and varnish from the system. Its enzymes work on water and sludge, and they take gum and varnish out of the fuel system.
• Helps easy starts and smooth runs. Enzyme action on water and sludge supports easy starting and smooth running each time you start up.
• Ready before fall storage. Seasonal storage is one of the listed uses, so add it before winter storage this fall.

What it is

Made by Star brite, this is a 32 oz bottle of diesel fuel additive for engines that need their fuel system cleaned and kept stable. It uses enzyme technology, which the listing says breaks down water and sludge so fuel burns more cleanly in the combustion chamber.

How to use it

1. Add 1 fluid ounce for every 4 gallons of diesel fuel.
2. When you rejuvenate old fuel, let it sit in the tank for a minimum of 24 hours before you use it.

What else the job needs

Good to have on hand: spare fuel filters, which the directions say to keep. The Star Tron Tank Cleaner can load or clog filters, so keep spares ready.