СООТНОШЕНИЕ DEXOS И ACEA

General Motors (GM) Dexos specifications are proprietary approvals developed by the company to standardize engine oil requirements worldwide, particularly for modern gasoline direct injection (GDI) and turbocharged engines. While Dexos approvals are based on ACEA (European Automobile Manufacturers Association) and API/ILSAC standards, they always exceed them through additional, more stringent tests developed by GM itself. Key Differences Between Dexos and ACEA Dexos approvals don't simply "copy" ACEA/API, but rather use them as a foundation, adding a number of tests critical for modern GM engines: 1. Dexos 1 (Gen 2 and Gen 3)Dexos 1 (all generations) focuses on protecting gasoline direct injection and turbocharged (GDI/TGDI) engines, which are prone to certain problems: Protection against LSPI (Low Speed ​​Pre-Ignition): This is a key requirement. GM developed its own tests for Dexos 1 Gen 2 and Gen 3 to ensure the oil effectively prevents pre-ignition at low engine speeds. ACEA A3/B4 or A5/B5 standards did not originally include such stringent tests. Piston and Turbocharger Cleanliness: Dexos 1 Gen 3's high-temperature deposit prevention requirements are typically higher than those of the corresponding ACEA grades. ACEA C5 Compliance (for Gen 3): Dexos 1 Gen 3 is often available in low-viscosity grades ($0-20), which aligns with the ACEA C5 concept—low-viscosity oils with reduced viscosity at high temperatures and high shear ($3.5 HTHS s) for maximum fuel economy. 2. Dexos 2 Dexos 2 was originally created as a unified standard for European GM gasoline and diesel engines, replacing two older approvals. ACEA C3 Base Oil: Dexos 2 is a low-ash (Mid-SAPS) oil, meeting ACEA C3 requirements (DPF protection in diesel engines and catalytic converter protection in gasoline engines). Additional GM Testing: Although it meets ACEA C3, Dexos 2 has more stringent requirements for: Oxidation stability. Anti-wear properties. Fuel consumption improvement. HTHS: Like ACEA C3, Dexos 2 requires a normal HTHS viscosity (greater than 3.5), which ensures reliable protection of highly loaded components. 3. Key Conclusion Dexos is always a step up from the ACEA and API standards on which it is based. If your GM vehicle requires Dexos approval, an oil that only meets ACEA C3 or C5 cannot be used as a full replacement unless it is officially Dexos approved. This is because: Oils with only an ACEA C3 approval have not necessarily passed GM's specific LSPI tests, which are critical for modern turbocharged engines. Dexos approval guarantees passage of a number of specific engine tests developed by GM that are not included in the standard ACEA test suite. Always use oils with an official Dexos approval, as specified in your vehicle's owner's manual. OUR COMPANY HAS BEEN IN WORKING SINCE 2007: 1. Subscribe to these channels:    / mygtru   https://dzen.ru/mygt https://vk.com/mygtru https://rutube.ru/channel/25261990/ https://www.drive2.ru/users/mygt/ https://vkvideo.ru/@club229934897 OUR CONTACTS: Service Station (oil change) Nikolay Ostrovsky, 111 k6, Box 5 Book an appointment via Telegram chat t.me/helpmygt Or call the numbers below: 8800-550-5722 Mon-Fri 9:00 AM - 5:00 PM Please allow for the time difference. We are located in Novosibirsk at Nikolaya Ostrovsky St., 111, building 5, office 319, 3rd floor. Additional numbers +79237754997 +79237751551 +79139155112 TELEGRAM CHANNEL FOR CUSTOMER SUPPORT FOR OUR WB OZ MM STORES (AUTO OILS) t.me/helpmygt Here is our website: https://mygt.ru/oil/ ATTENTION!!!! A VERY limited selection of our products is available on ozon and wildberries. Everything else is available on our website. We ship throughout Russia via any transport company. For questions about availability, please call the numbers above. Here is our official store on Wildberries MYGT https://www.wildberries.ru/seller/116... Here is our official store on Ozon IP VORONKOV https://www.ozon.ru/seller/ip-voronko... Here are our official stores for Japanese goods MYGT_HOME (Household Goods from Japan) https://www.wildberries.ru/seller/429... https://www.ozon.ru/seller/mygt-home-... MYGT HOME (HOUSEHOLD GOODS FROM JAPAN) Support Chat https://t.me/mygt_home #OilReplacementNovosibirsk #MotorOilNSK #MYGT #OilChangePoint #IPVoronkov #AutoNSKService #ExpressOilChange #NovosibirskAuto #AutoServiceNSK #EngineNSK #Maintenance #OilSpb #NovosibirskCars #AutoRepairShop #AutoNSKRepair #anton_mygt