[tuyetvan]

Maybe there will come a day when even cars don't need maintenance, but we aren't there yet -- even though automotive technology has changed a lot in the past several years. There are a lot more electric vehicles on the road that don't require oil changes. But, if you are like most people and are driving a traditional gasoline or hybrid vehicle you need an oil change to protect your engine from damage. 

On a basic level engines have many moving parts; we rely on oil to lubricate, clean and cool those engine parts, preventing metal-to-metal contact and the resultant friction and damage that can occur.  We need to change the engine oil because as we use our car, the engine oil starts to deteriorate. The additives start to lose their effect. The oil changes from a golden color to a dark brown to a dark black. The oil starts out slippery and smooth and ends up either runny and thin or thick, gritty and gluey.  Also, the oil filter begins to get clogged with debris and deposits reducing its effectiveness. 



If the oil is not changed regularly, this valve timing mechanism will fail when the small oil passages block up. As a result, not changing your oil can cause a performance problem. These complex systems mean that an engine now costs from $5000 to $15000 (and up) to replace.



Như Vân nói trước đây

MAINTENANCE XE .. ĐỪNG BAO GIỜ COI THƯỜNG CHUYỆN "OIL CHANGE" ... NÓ RẤT QUAN TRỌNG CHO SỨC KHOẺ CUẢ XE MÌNH , NẾU MÌNH CARE   


https://www.baautocare.com/car-repair-ed...oil-change