Engine Deposits and Performance
Although proper vehicle design and maintenance are necessary, gasoline plays an important role in meeting these expectations. However, since almost all base gasolines are formulated to the same regulated specifications, the performance of the deposit-control additive is one of the most important features that differentiates one brand of gasoline from another.

Deposit Trouble Areas
	1. Fuel Injector Pintle Deposits: Affect driveability, power loss, exhaust emissions and fuel economy 2. Intake Valve Deposits: Affect driveability, power loss and exhaust emissions 3. Combustion Chamber Deposits: Affect octane requirement, exhaust emissions and deposit interference

Most automotive gasoline engines operate in a four-stroke cycle: intake, compression, power and exhaust. The first downward motion of the piston in the four-stroke cycle—the intake stroke—draws the air-fuel mixture into the combustion chamber through the open intake valves. As the piston reverses direction and begins to move back up, the intake valves close. This upward motion of the piston is the compression stroke. Compression raises the pressure and temperature of the mixture, causing it to vaporize. Near the top of the compression stroke, the spark plug produces a spark, igniting the fuel vapors. The mixture burns and expands, which drives the piston downward for the third stroke, or power stroke. As the piston reaches the bottom of its movement and begins to move back up again, the exhaust valves open, beginning the exhaust stroke. The upward motion of the piston pushes the burned gases out of the engine into the exhaust manifold and eventually out the exhaust pipe. See a demonstration in Flash of how your engine works, and how fuels with the Techron additive help keep it clean.

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