Frequently Asked Questions

Diesel fuel quality is declining throughout the world, and we expect the trend to continue.  In fact, a recent survey suggests that 70% of diesel fuel sold at service stations does not meet the SAE standard for diesel fuel lubricity.  The three leading factors are:

• Crude Oil Sources
• Refining Techniques
• Blending Techniques.

These fuel quality issues can be addressed by using a quality additive, such as Stanadyne's Performance Formula, which helps protect against excessive wear and corrosion while increasing both power and fuel economy.

First, treat your fuel with a good quality winter additive to lower its pour and cold filter plug points. We recommend Stanadyne's Performance Formula because it also boosts the cetane number to improve cold weather starting.
Second, change your fuel filter element and check it frequently.
Third, consider an in-line fuel heater.
Fourth, an engine block heater is a good idea when the temperatures drop below the teens.
Finally, if your fuel does gel and clog your fuel filter, in an urgent situation, an alcohol additive may be added to your fuel tank and filter element. The fuel should start flowing again in a few minutes. Warning, heavy alcohol use may damage non metal materials in your fuel system.

Yes, not all additives are alike.  There are no standards to control what additives are made of.  Some fuel additives are formulated for winter use to reduce fuel gelling and do little to protect your fuel system.  Others may be mostly solvents to clean deposits from your injectors and do nothing to improve the lubricity of the fuel. 

Stanadyne's Performance Formula.  Stanadyne, being a major manufacturer of fuel injection systems in America has formulated an all season additive and has been proven by an independent research institute to out perform all others on the market.  Performance Formula, increases cetane for better starting, increases power and more MPG, prevents injector plugging, removes combustion deposits, helps remove water, prevents corrosion, improves lubricity and has anti-gelling ingredients to help prevent freeze up.  Stanadyne's Performance Formula has received the recommendations of these major engine companies:  Caterpillar, General Motors, Ford, John Deere, Navistar, Volvo-Penta and Bosch.