Maintenance versus modification

While I was checking the plug gaps on GM X-20 motor in OPEL B-Vectra, found out I some lack of motor lubricant 1 L by chance, the oil level gauge has not been paid attention to as long as one and a half year. 150,000km used motor might have consumed unexpectedly, but this is not caused by some oil leak somewhere in oil gallery but by just consumption for lubricants. Plug gaps were kept in the standard value of 0,90mm promptly. In addition, Microflon powder was applied in both motor and power steering fluid after mixing well. Stable idling under relatively quiet atmosphere was obtained as usual. BC7 SUPBARU LSi US model might need also the same maintenance for lubricants and for plug gaps.

My son turns deaf ears to me ignoring my important advices on his toy like automobile and he is going to desert his BLE SUBARU B4 3L model ordering new item, 1997 produced TOYOTA CRESTA 2,5L model paying a plenty of money, 750,000 yen just like fri-like and throw them in a ditch!  He is going to play with that modified automobile by drifting challenge. I'm anxious about his future dangers, while maintaining one and actual circuit running accident. I just pray that he would not be injured with irreversible dysfunctions such as born fracture and blindness, in the worst he might be fallen into incapacitated body condition leading to returning his medical license to the Government? He is now crazy in playing drifting running, so I have no way to return him to the correct way, a young people would not recognize himself as a primitive fool until he comes to an end?