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Oil ensures your engine is properly lubricated, allowing pistons to slide smoothly within their respective cylinders, hundreds of times per second. Without this lubrication, the friction between the metal parts would seriously damage the engine in just a few minutes.
Additionally, oil continuously releases impurities contained in the engine circuit. This means it eventually becomes loaded with too many micro-residues, altering its original physical properties, and impacting its viscosity and ultimately, its efficiency. In addition, oil is inevitably lost over time as high engine temperatures consistently burn off small amounts of oil – and as we know, less oil means less lubrication.
Due to the issues experienced by old or a lack of engine oil, it’s necessary to check your engine oil level at regular intervals to top it up when needed.
Make sure your engine is turned off and has been allowed to become cold to avoid the risk of burning yourself, and that your car is on level ground, to see the exact amount of oil remaining.
To be on the safe side, remember to check your oil level every 1,000 miles, and always before you go on particularly long trips. If the oil level warning light on your dashboard remains lit after topping up, you should contact a specialist.
Designations like 5W-30 or 10W-40 are encountered when choosing an engine oil, but what do they mean?
Here is everything you need to know about the three standards used to describe engine oils.