|
Frequently Asked Questions
Do you have more questions about the Techron® additive and its benefits to your vehicle's engine? You might find your answer here.
What is TOP TIER Gasoline designation?
In 2004, BMW, General Motors, Honda and Toyota established the TOP TIER program, which established criteria for detergency levels in Gasoline higher than those currently set by the U.S. Environmental Protection Agency (EPA). This standard established requirements for the design of Gasolines that keep engine parts cleaner than lower-quality Gasolines by providing reduced fuel-related deposits, resulting in better engine performance. Texaco and Chevron Gasolines with Techron were the first designated as meeting the tough TOP TIER specifications in the U.S., and they didn't even have to adjust their formulae—they were already that good!
Back to top
All gasolines in the U.S. are required to contain an additive. What makes gasolines with Techron different?
Federal regulations require that all gasolines in the U.S. contain a deposit control (DC) additive. The lowest-additive concentration necessary to pass all the EPA required tests is called the LAC level. Many companies use the LAC level in their gasolines. As a result, some gasolines provide better deposit control performance than others because these companies use DC additives that are more effective, have fewer side effects, and/or because they add them at higher concentrations.
Back to top
What symptoms might occur if I use lower-quality gasolines?
Deposits on fuel injectors can affect the way the fuel vaporizes and burns, which can impact the way your engine starts and how smoothly it runs. They can also affect fuel economy and emissions. Intake valve deposits also can affect emissions and—if heavy enough—can reduce power. Combustion chamber deposits affect your octane number requirement, which can cause you to need fuel with a higher octane level.
Back to top
Is Techron going to be in Texaco fuels in the U.S. only?
No, North America was only the beginning. Texaco also offers fuels with Techron in parts of Latin America, and is planning to introduce the Techron additive in many countries around the world.
Back to top
What's the difference between the Techron additive and Techron Concentrate?
Although Techron Concentrate is not precisely the same formulation as used in our gasolines, its formulation is derived from the same unsurpassed polyether amine chemistry. Roughly speaking, it is about 10 times stronger than the formulation added to our retail gasolines. If you use a Chevron-family gasoline (Texaco and Chevron with Techron) regularly, you shouldn't need to use a concentrate unless you have a particularly sensitive vehicle or use your vehicle in very severe conditions. However, if you consistently or even intermittently use a lower-quality gasoline, using a powerful after-market concentrate such as Techron Concentrate can keep out deposits which may have developed on vital engine parts in a single tankful of gasoline.
Back to top
Are all fuel injector systems the same?
No. There are three main types.
A system that has the injector in the throttle body, mounted on the air intake manifold, is called a throttle body injection system. A system that uses one injector at the intake port of each cylinder, where it sprays on the intake valves, is called a port fuel injection system. A central port fuel injection system uses a central distribution valve connected to spring-loaded poppet nozzles by tubes that run down each inlet manifold leg to spray fuel on the intake valves.
Several strategies are used to time fuel injection. Some older throttle body injectors and port fuel injection (PFI) systems inject fuel almost continuously, much like a carburetor. Intermittent injection systems fire the injectors simultaneously to deliver the same quantity of fuel to each cylinder. These systems sometimes deliver fuel twice per cycle. Sequential injection systems fire injectors sequentially at the same crankshaft angle on each cycle. Fuel quantity is metered by controlling the time the injector is open (pulse width).
<< Lower Emissions | Fuel Links >>
|
