Correctly selected engine oil can serve as a guarantee of smooth operation of a car engine in any climatic and road conditions.
Given that there are a wide variety of engine oils on the market, reviews of ordinary motorists can be misleading.
We offer rating of motor oils from the laboratory of VIAL OIL LLC and the Gubkin Russian State University of Oil and Gas, based on the results of testing synthetic oils of viscosity grades 5W-40 and 5W-50.
Read updated rating of motor oils 5W30 and 5W40.
10.ZIC XQ (Korea) - a quality product that can be used all-season. Physicochemical parameters fully comply with the viscosity class standards. The oil showed good stability and an acid number which indicates the presence of oxidation products.
9. MOBIL Synt S (Belgium) in all respects it fits into the standards, however, the experts noted that the polymer thickener demonstrated a high degree of response.
8. SPECTROL Galax (Russia). Despite the good test results, experts noted the presence of large particles of oxidation products, as well as a fairly high rate of response of the polymer thickener. At each oil change, it is recommended to flush the engine to remove possible deposits.
7. MANNOL Elite (Belgium). Of the minuses of this product, experts noted only a significant rate of response of the polymer thickener. The manufacturer claims high thermal-oxidative stability of the product.
6. SELECT Lubricants Supreme (Russia) Is a relatively new product on the market, but tests show that the oil deserves the attention of consumers. This sample showed good stability during testing.
5. AGA 027MS (Russia) demonstrated good physical and chemical characteristics. Held engine oil test showed that this product is out of competition in terms of cold start. However, if the average time stability indicators turned out to be at their best, then with prolonged operation of the oil, its aging is noticeable.
4. TOTAL Quartz 9000 (France). The oil has shown good results, experts noted the high stability of the additive package. The period of use of this product can be quite long.
3. CONSOL Ultima (Russia) has demonstrated high stability and resistance to thermal oxidation processes. Experts recommend oil for continuous operation with long drain intervals.
2. VALVOLINE SynPower (Netherlands). In terms of physical and chemical parameters, the product meets the established standards. Experts note that even a significant interval between oil changes is quite acceptable when using this sample.
1. SHELL Helix Ultra (Finland) — best engine oil in our ranking. Experts confidently recommend it for long-term use. The high resistance to oxidation is especially noted.