Engine Oil Specs.7z Today
Many manufacturers have their own "house" specs that go beyond general API or ACEA standards. If you own a European car, look for codes like: BMW Longlife-01 Mercedes-Benz MB 229.5 GM dexos1™ or dexos2™ (common for Chevys and GMCs) Quick Tips for Choosing:
A mix of both. It offers better protection than conventional but at a lower price point than full synthetic. 4. OEM Approvals (Manufacturer Specs) engine oil specs.7z
This represents the oil's resistance to flow at operating temperature (212°F / 100°C). A higher number means a "thicker" oil film, which provides more protection for hard-working or older engines. 2. Performance Categories (The Letters) Many manufacturers have their own "house" specs that
You’ll see the symbol on bottles that meet GF-6 standards. These oils focus heavily on fuel economy and emission system protection. ACEA (European Automobile Manufacturers' Association): flows better in cold
Chemically engineered for better stability. It handles extreme heat better, flows better in cold, and lasts longer.
The current highest standard for gasoline engines (introduced in 2020). It’s designed to protect against "low-speed pre-ignition" (LSPI) in modern turbocharged engines. CK-4 / FA-4: Current standards for diesel engines.
These ratings tell you if the oil meets the latest technological standards for your engine type.