Can You Mix Car Engine Oils?
Introduction
Mixing car engine oils is a common question that many drivers have. There are a lot of different factors to consider when mixing oils, and it’s essential to do it correctly to avoid damaging your engine.
Compatibility
The most important factor to consider when mixing oils is compatibility. Not all oils are compatible with each other, and mixing incompatible oils can cause severe problems.
There are two main types of engine oils: conventional oils and synthetic oils.
- Conventional oils are made from refined crude oil.
- Synthetic oils are made from chemically engineered compounds.
Conventional oils and synthetic oils are not compatible with each other. Mixing these two types of oils can cause sludge to form, which can clog your engine’s oil passages.
In addition to conventional and synthetic oils, there are also semi-synthetic oils. Semi-synthetic oils are a blend of conventional and synthetic oils.
Semi-synthetic oils are compatible with both conventional and synthetic oils. However, it’s essential to check your owner’s manual to see the recommended oil type for your vehicle.
Viscosity
Another important factor to consider when mixing oils is viscosity.
The viscosity of an oil is important because it affects how well the oil can protect your engine.
A thicker oil will provide more protection than a thinner oil. However, a thicker oil can also make it harder for your engine to start in cold weather.
The viscosity of an oil is typically expressed in a number, such as 5W-30.
- The first number (5W) indicates the oil’s viscosity at cold temperatures.
- The second number (30) indicates the oil’s viscosity at high temperatures.
When mixing oils, it’s essential to choose oils with compatible viscosities.
Additives
Engine oils contain various additives to improve their performance.
Some of the most common additives include:
- Detergents
- Dispersants
- Anti-wear agents
- Antioxidants
When mixing oils, it’s essential to consider the additives in each oil.
Some additives can interfere with each other, so mixing incompatible additives can cause problems.
Mixing Different Brands of Oil
It is generally safe to mix different brands of oil, as long as the oils are compatible.
However, it’s always best to consult your owner’s manual before mixing different brands of oil.
Mixing Used and New Oil
It is not recommended to mix used and new oil.
Used oil contains contaminants that can damage your engine.
If you need to add oil to your engine, it’s best to use new oil.
Conclusion
Mixing car engine oils can be a safe and effective way to maintain your vehicle.
However, it’s essential to do it correctly to avoid damaging your engine.
By following the tips in this article, you can safely mix car engine oils and keep your vehicle running smoothly.
