ComStar heating oil & diesel fuel system treatment 16 oz — concentrated anti-gel cleaner

Designed for residential and light commercial heating systems, ComStar Super Heat combines de-icing, cleaning and corrosion control into a single bottle. This concentrated formula treats hundreds of gallons, helping restore consistent fuel flow, reduce soot and limit system wear without major service work. Use it regularly during the heating season or add it before long cold snaps to keep burners and tanks operating reliably.

How does Super Heat prevent fuel from gelling in freezing temperatures?

Super Heat contains cold-flow improvers and anti-gel agents that lower the fuel's pour point and keep wax crystals from forming. That means fuel stays mobile at lower temperatures, reducing the chance of filter blockages and burner failure when it gets very cold.

• Contains pour-point depressants to maintain flow in subfreezing conditions
• Breaks up wax formation that causes jelling
• Helps keep filters and nozzles from icing or clogging

Will this treatment clean tanks and combustion components?

Yes — the formula includes detergents and solvents that dissolve residue and sludge accumulated in tanks and lines. As deposits break down, they are easier for the system’s filter to capture or for routine maintenance to remove, which improves combustion and efficiency.

• Loosens varnish, carbon and tank residue for easier filtration
• Helps reduce soot build-up on nozzles and burner parts
• Can improve burner ignition and flame stability after treatment

How does Super Heat handle water and corrosion in fuel systems?

Super Heat contains water-dispersing agents that emulsify small amounts of water so they pass harmlessly through filters and burners, and corrosion inhibitors that coat metal surfaces. Removing free water and protecting metal parts lowers the risk of rust, pitting and fuel system damage over time.

• Emulsifies water to prevent microbial and rust hotspots
• Includes corrosion inhibitors to protect tanks and lines
• Reduces contamination that can shorten filter and component life

How much should I use and how often?

ComStar Super Heat is highly concentrated: one 8 oz. bottle treats up to 275 gallons of fuel. Add with each fill or every few tanks during the cold season for continuous protection; for long-term tank cleanups, follow a short series of treatments as part of scheduled maintenance.

• 8 oz treats up to 275 gallons; 16 oz doubles coverage for larger tanks
• Add directly to the tank when refilling for best mixing
• Use regularly during winter and before storage or extended cold periods

Who is this for: ComStar Super Heat is intended for homeowners, property managers and service technicians who use heating oil or diesel in furnaces, boilers and outdoor tanks and want a simple, concentrated solution to prevent cold-weather shutdowns, reduce soot and protect fuel system components. It’s well suited to anyone seeking a preventive maintenance product that treats water, sludge and corrosion while improving cold-flow properties without complex procedures or special equipment.