Fuel Heater :: Sigma Automotive

› a high-performance engine is an efficient engine is a clean engine ‹

Increase Your Gasoline Mileage Up To 10% In Less Than 30 min.

You can increase your fuel economy with the "Fuel Heater" and it works well with all other fuel efficiency components.

This Fuel Heater is literally free! It pays for itself quickly, in your fuel savings. This device uses the heat of your engine coolant system to pre-heat your fuel causing a more complete burn, increased HP by enhancing the effects of the Fuel Optimizer, higher gas mileage and improved carbon emissions. It's that simple.

Works on all vehicles, foreign or domestic
Starts paying for itself with your first tank of gas
No moving parts to break
Installs in minutes with easy-to-understand instructions
Increase your fuel economy up to 10% (results vary with your driving habits)
Increases power too
Works singly or with other fuel saving devices
Improves hydrogen-assist system
Improves propane-assist system
Improves water injection system
100% handmade in the USA with 90% or higher US components

Hot water (coolant) is passed through the device to maximize rapid heat transfer into the fuel. This raises the critical Thermal Efficiency of the engine to improve MPG. The benefits of the Fuel Heater is particularly beneficial not just in cold climates; but warm climates as well because fuel is naturally always slow to vaporize. Warm fuel is much more efficient as the fuel goes to the injectors where it is sprayed into the intake manifold to give improved vaporization. This is why you get best MPG on a very hot day.

The colder the fuel, the larger the fuel fragments. This is why MPG drops as the temperature gets colder. However, too much heat (about 270°F) may damage fuel molecules and cause knock. The optimum fuel temperature is ±200°F.

So warm fuel is good for MPG & power, but what about air?
Cold air is BAD for MPG but can increase power; just not due to air density as is commonly thought, but rather cold air flows better into the engine due to its much lower viscosity. You read it right, exact opposite with liquids than with gases, hot air actually has HIGH viscosity while cold air has low viscosity. To get warm air, you may block off the cold air from the fenderwell, then bore numerous 1.25" holes in the air box so the air filter would receive warm air from inside the engine compartment.