What kind of engine oil should be used for the Peugeot 408 1.6T?
2 Answers
The 1.6T model of the Peugeot 408 is recommended to use fully synthetic engine oil 5W-30, which should be replaced every 10,000-12,000 kilometers or every six months. The following is an introduction to the functions of engine oil: 1. Lubrication to reduce wear. The relative sliding between the piston and cylinder of the engine, as well as between the main shaft and bearing shells, causes wear. Engine oil forms a thick oil film between the two sliding surfaces, separating the surfaces of the relatively sliding parts to reduce wear. 2. Cooling and temperature reduction. The engine oil carries heat back to the oil tank and then dissipates it into the air, helping the radiator to cool the engine. 3. Cleaning. The engine oil circulates carbon deposits, sludge, and worn metal particles from engine parts back to the oil tank, flushing away dirt generated on the parts through the flow of the lubricating oil. 4. Shock absorption and buffering. When the pressure at the engine cylinder port rises sharply, it suddenly increases the load on the piston, piston rings, connecting rod, and crankshaft bearings. The load is transmitted through the bearings, and lubrication helps to cushion the impact load.
As a long-time Peugeot owner, I've gained considerable experience in choosing engine oil for the 408's 1.6T turbocharged engine. I recommend using full synthetic 5W-30 oil. Peugeot's official user manual typically specifies the PSA B71 2312 specification, which ensures proper viscosity and excellent lubrication. Don't try to save money by switching to mineral oil or randomly using 5W-40, as this can lead to carbon buildup in the turbocharger, increased noise, and higher fuel consumption. I use Total or Citroën genuine oil, changing it every 8,000 kilometers or once a year, which keeps the engine running smoothly and extends its lifespan. In colder northern regions, 0W-30 is also a good option for quicker starts. Regularly check the dipstick to ensure proper oil levels, and never wait until the oil discolors or deteriorates, as this can affect engine performance. I suggest keeping regular maintenance records to prevent minor issues from becoming major problems.
