To determine the fuel economy benefits of its synthetic lubricants, AMSOIL INCsimultaneously compared fuel consumption in two nearly identical 2001 Kenworth T800B short- to medium-haul diesel trucks in accordance with the SAE J1321 In-Service Fuel Consumption Test ProcedureThe procedure’s primary goal is to eliminate all operating and environmental variables that may influence fuel economy - except lubricant selection.

Testing demonstrates use of AMSOIL synthetic lubricants in short- to medium-haul diesel applications can increase fuel economy, and in this case did by 6.54 percent."
Sourced from a recent issue of Amsoil Magazine.
You may be committed to another brandIf that is the cases, then look for the appropriate synthetic product options from your brandIf it is not available, have an open mind to make a change.

Ethynol is more commonly used to reduce the use of petroleum based fuel however it is increasingly becoming an issue of keeping the engines cleanUsing the appropriate fuel additive will keep the difficulties related to fuel challenges and situations at a minimum.