Frequently Asked Questions
Which countries in Latin America have the Techron additive in Texaco fuels?

What symptoms might occur if I use lower-quality gasolines?

What's the difference between the Techron additive and Techron concentrate?

Are all fuel injector systems the same?

Which countries in Latin America have the Techron additive in Texaco fuels?
Starting in October 2005, Texaco gasolines contain the Techron additive in the Dominican Republic, El Salvador, Guatemala, Honduras, Panama and Puerto Rico. Techron was first introduced in Texaco fuels in North America in August 2005.

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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.

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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 sever 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.

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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).

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