Modern internal combustion engines are highly advanced and built to precise engineering standards. This requires using motor oils that meet specific quality and compatibility standards. One of the most important criteria when selecting motor oil is OEM approval—official endorsements from automakers that confirm the product’s compliance with the requirements of specific vehicles. This article examines the importance of OEM approvals, the consequences of ignoring them, and the range of Pexol products with relevant endorsements.
What Is an OEM Approval and Why Is It Needed?
An OEM (Original Equipment Manufacturer) approval is an official statement from a car manufacturer that a motor oil has passed internal tests and is considered safe and effective for use in their engines. Approval means the oil meets particular requirements for viscosity, thermal stability, compatibility with exhaust aftertreatment systems, and durability.

The Role of Automakers in Oil Standardization
Many leading car manufacturers develop their own motor oil specifications, which can differ significantly from API or ACEA standards. For example:
- Volkswagen uses approvals like VW00, 505.00, 504.00, and 507.00.
- Mercedes-Benz has MB 229.3, 229.5, 229.51.
- BMW uses LL-01, LL-04.
- Renault uses RN0700 and RN0710.
These standards account for engine design features, materials, and the technologies used by the manufacturer.
What Happens If You Use Oil Without OEM Approval?
Ignoring OEM approvals can lead to the following consequences:
- Premature engine wear due to inadequate lubrication properties.
- Damage to aftertreatment systems (catalytic converters, particulate filters) if ash level requirements are not met.
- Loss of warranty coverage.
- Worse fuel economy and lower engine performance.
Using an oil without official approval is only acceptable if it matches all characteristics and there are no restrictions from the vehicle manufacturer.

OEM Approvals in the Pexol Motor Oil Range
Pexol products are developed to meet the requirements of major global automakers. Such compliance is confirmed by laboratory testing and certification.
How to Check Oil’s OEM Compliance
Before purchasing oil, it is recommended to:
- Read your vehicle’s manual.
- Check the oil’s packaging for approvals.
- Verify information on the official oil manufacturer’s website.
- Consult a specialist or service center if in doubt.
Following OEM approvals when choosing engine oil is crucial for engine longevity and reliability. Pexol products offer a wide range of solutions that meet the specifications of leading car manufacturers. This compatibility allows vehicle owners to retain their warranties, reduce the risk of technical problems, and ensure efficient vehicle operation.