The 5 R's of Lubrication are the core guidelines for ensuring the efficient operation of a vehicle's lubrication system, which specifically include: **Right Oil**-select the viscosity grade and type (e.g., fully synthetic oil is recommended to be changed every 10,000 kilometres or 12 months) that meet API/ACEA standards according to engine requirements; **Right Quantity**-oil filling must strictly follow the dipstick markings, as excessive or insufficient oil will lead to poor lubrication or carbon buildup; **Right Place**-ensure that engine oil, transmission fluid, etc., are poured into the designated fill ports to avoid incorrect filling; **Right Time**-change oil according to the maintenance manual intervals (e.g., mineral oil every 5,000 kilometres/6 months), with shorter intervals required under extreme driving conditions; **Right Method**-replace the oil filter during oil changes, using professional tools to drain old oil and clean the oil passages. Proper adherence to the 5 R's can significantly extend engine life and reduce maintenance costs.