See also:

Maximum Gross Vehicle Weight (GVW)/maximum Gross Axle Weight (GAW)
The GVW of the towing vehicle must not exceed the Gross Vehicle Weight Rating (GVWR) shown on the F.M.V.S.S./C.M.V.S.S. certification label. The GVW equals the combined weight of the unloade ...

Engine serial number
The number is stamped on the engine as shown. ...

Increasing fuel economy
-Accelerate slowly and smoothly. Maintain cruising speeds with a constant accelerator position. - Drive at moderate speeds on the highway. Driving at high speed lowers fuel economy. - Avoid unn ...