Owner's Manual
Page 355
...Some weather and atmospheric conditions can be loosened before being flushed. Airborne pollutants can fall upon and attack painted surfaces on the underbody. This code helps identify the vehicle's engine, specifications, and replacement parts. Underbody Maintenance Chemicals used for ice and ... corrosion and rust can take two forms: blotchy, ring-shaped discolorations, and small, irregular dark spots etched into the paint surface. This is the engine code. The VIN also appears on page 5-108 for the vehicle. See "Engine Specifications" under Capacities and Speci...
...Some weather and atmospheric conditions can be loosened before being flushed. Airborne pollutants can fall upon and attack painted surfaces on the underbody. This code helps identify the vehicle's engine, specifications, and replacement parts. Underbody Maintenance Chemicals used for ice and ... corrosion and rust can take two forms: blotchy, ring-shaped discolorations, and small, irregular dark spots etched into the paint surface. This is the engine code. The VIN also appears on page 5-108 for the vehicle. See "Engine Specifications" under Capacities and Speci...