Cummins own Dr. Diesel has been studying vehicle mpg for years. Now, for the first time, he reveals his secret findings, in every detail. You'll see the effect of:

• Various vehicle components like aerodynamic fairings and low-rolling-resistance tires
• Power train applications and gearing recommendations
• Engine operating conditions such as fan and air compressor operation, engine lube oil levels and temperature settings
• Proper vehicle operating techniques, from shifting and idling to vehicle speed management

Dr. Diesel has even provided a worksheet to help you determine how much these factors can affect and improve the fuel economy of every engine in your trucking operation. Check it out now, at Dr. Diesel's Secrets To Great MPG.