See also:

Materials Added To Engine Oils
Do not add any supplemental materials, other than leak detection dyes, to your engine oil. Engine oil is an engineered product and its performance may be impaired by supplemental additives. ...

Summer Operation
NOTE: In some cases during high temperature trailer tow operation the Air Conditioning system performance may be reduced. This is to help protect the engine from overheating during the high load ...

Upper Half Door Window Installation — If Equipped
1. Grasp the half door window and line up the pins with the pockets in the lower door. 2. Push down to ensure the half door window is fully seated. ...