Engine oil additives make all sorts of promises about helping your vehicle's motor last longer and increasing your gas ...

And while the Lucas anti-gel (9.21mm) and Stanadyne (9.07mm) additives weren’t much better than untreated diesel (9.34mm), neither of them claimed to improve lubricity. Howes does, and it faired ...

Lucas Oil Anti-Gel Cold Weather Diesel Treatment helps drivers and fleet operators avoid costly winter-related downtime by preventing diesel fuel from gelling in temperatures as low as -40°F.

Add Diesel Fuel Additives. Anti-gel additives lower the cloud and pour points of diesel fuel, preventing wax crystals from forming. Here’s how to use them effectively: Choose the right product: Look ...

These chemicals are different from anti-gel products — while anti-gel additives are designed to prevent the formation of gel in diesel fuel, they can't remove gel once it has already formed.

If your diesel vehicle isn't running properly, try a diesel fuel additive to restore lost performance. See the best diesel fuel additives at AutoGuide.com.

Howes Diesel Treat 64-Ounce Anti-Gel and Diesel Fuel Lubricator Howes/Amazon A budget-friendly Diesel additive is the Howes Diesel Treatment , as a half gallon of it costs $14 from Amazon.

To help prevent diesel fuel from gelling, you can also put in your own anti-gel additive, but it’s best to put it in before filling the tank so that it mixes well with the fuel and before the ...

Residents said fuel purchased from Vitus Energy thickens in extreme cold and stops their heating system from working — something that shouldn’t happen to Arctic-grade fuel.