The weight of automobile diesel engine is related to its model and parameters, so its weight information can be obtained by querying the engine model and parameters. Generally speaking, the model and parameters of the engine can be found in the automobile manual, registration certificate, engine nameplate and other places. If you can't find relevant information in these places, you can also get it by consulting with car manufacturers or dealers.
In addition, you can also inquire about relevant information through online automobile information websites or forums.