Gas-Saving Products: Facts or Fuelishness?

   Accessory Drive Modifiers:
These devices reduce power to specific auto accessories.

   The EPA has evaluated: Morse Constant Speed Accessory Drive**; P.A.S.S. Kit**; PASS Master Vehicle Air Conditioner**.

   Fuels and Fuel Additives:
These materials are added to the gas tank.

   The EPA has evaluated: Bycosin; EI-5 Fuel Additive; Fuelon Power; Johnson Fuel Additive; NRG #1 Fuel Additive; QEI 400 Fuel Additive; Rolfite Upgrade Fuel Additive; Sta-Power Fuel Additive; Stargas Fuel Additive; SYNeRGy-1; Technol G Fuel Additive; ULX-15/ULX-15D; Vareb 10 Fuel Additive; XRG #1 Fuel Additive.

   Oils and Oil Additives:
Usually these materials are poured into the crankcase.

   The EPA has evaluated: Analube Synthetic Lubricant; Tephguard.

   Driving Habit Modifiers:
These are lights or sound devices to tell the driver to reduce acceleration or to shift gears.

   The EPA has evaluated: AUTOTHERM**; Fuel Conservation Device; Gastell; IDALERT**.

   Miscellaneous

   The EPA has evaluated: BRAKE-EZ; Dynamix; Fuel Maximiser; Gyroscopic Wheel Cover; Kamei Spoilers**; Kat's Engine Heater; Lee Exhaust and Fuel Gasification EGR; Mesco Moisture Extraction System; P.S.C.U. 01 Device; Treis Emulsifier.

   * Indicated a very small improvement in fuel economy but with an increase in exhaust emissions. According to Federal regulations, installation of this device could be considered illegal tampering.

   ** Indicated a very small improvement in fuel economy without an increase in exhaust emissions. However, cost-effectiveness must be determined by the consumer for a particular application.

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