What kind of engine oil should be used for the Peugeot 408?
2 Answers
The 1.8L model of the Peugeot 408 uses semi-synthetic engine oil 5W40; the 1.6T model uses fully synthetic engine oil 5W30. Engine oil consists of two parts: base oil and additives. The base oil is the main component of the lubricant, determining its basic properties, while the additives compensate for and improve the deficiencies in the base oil's performance, granting it certain new properties, making them an important part of the lubricant. Taking the 2020 Peugeot 408 360THP 10th Anniversary Premium Edition as an example, its dimensions are 4750 mm in length, 1820 mm in width, and 1488 mm in height, with a wheelbase of 2730 mm, a curb weight of 1385 kg, and the body structure is a 4-door, 5-seater sedan.
I've been driving the Peugeot 408 for almost three years now, and this car is quite particular about engine oil. The official manual recommends using 5W-30 full synthetic oil to protect the engine and save some fuel. I always use brands like Mobil 1 or Castrol, with the right viscosity to prevent part wear. Don't wait until there's a problem to change it; I suggest checking the oil level and condition every 5,000 kilometers. If you notice it turning black or having an odd smell, change it promptly. New car owners often overlook the oil filter—it should be replaced together to ensure smooth oil flow. Don't skimp by using cheap oil, as there are many counterfeits that can cause engine noise and vibrations, damaging the car long-term. In winter, warm up the car for a few minutes before starting; this helps the oil flow better for cold starts, putting safety first. Remember to check the user manual for the exact specifications, as engine requirements may vary slightly by model year.
