What type of engine oil is suitable for Citroen C5?

1 Answers
SophiaRose
07/30/25 1:28am
Citroen C5 uses engine oil with the specification 5W40. Different types of engine oil determine the working efficiency and service life of the engine. The following are three types of engine oil: mineral oil, semi-synthetic, and full-synthetic oil. 1. Mineral oil is based on refined petroleum mineral oil with additives. 2. Synthetic oil is produced through processes like cracking and polymerization. If the base oil for engine oil production is entirely made from such synthetic oil, it is called full-synthetic oil. 3. Semi-synthetic oil is a blend between mineral oil and synthetic oil, with varying proportions of mineral and synthetic oil in different 'semi-synthetic' oil products.
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