Evaluation of heavy-duty vehicles engine life with controlled modification of engine oil

The article presents the method of controlled modification engine oil, as well results operational studies to assess service life heavy-duty vehicle engines. oil includes a system five levels information helping technical condition engines vehicles, including mining dump trucks. first level methodology use subjective methods for determining by its external manifestations. second simple instrumental and means obtaining diagnostic about subsystems. third technique involves drip test oil. fourth chemical analysis samples. fifth spectral determine presence metals.