The utility model relates to the technical field of engine oil devices, and discloses a longitudinal engine oil
nozzle for a
pickup truck, which comprises a cylinder body
nozzle and a cylinder body, the cylinder body
nozzle is arranged below the cylinder body through a fixing seat, the cylinder body nozzle can spray engine oil only on the wall of the cylinder body, a blocking cap is arranged at the engine oil spraying position of the cylinder body nozzle, and when the
internal temperature of an engine is low, the blocking cap can block the engine oil. Engine oil sprayed out of a cylinder body nozzle can penetrate through a blocking cap and be sprayed to the inner wall of a cylinder body, when the temperature of an engine is high, the engine oil sprayed out of the cylinder body nozzle is blocked, cannot penetrate through the blocking cap and can only be sprayed out from the side face between the cylinder body nozzle and the blocking cap, and when the engine is just started, the temperature is low, the
oil viscosity is large, the fluidity is poor, and a large spraying area is needed. All parts of the engine are fully lubricated, friction and abrasion during starting are reduced, the temperature rises, the
viscosity of engine oil is reduced, the flowability is enhanced, a small spraying area needs to be provided by a cylinder body nozzle in a high-temperature state, and waste and
pollution of the engine oil are reduced.