Oil is a vital lubricant used to keep a wide range of equipment running smoothly and protected against, wear, contamination and rust.
From stationary plant machinery to engines in vehicles, oil is the lifeblood that ensures many companies operate effectively and keep their mechanical investments safeguarded.
Due to the important role oil plays, the difference between synthetic oil and mineral oil is a commonly asked question.
Synthetic oil is defined as a man-made lubricant formulated for superior performance. As a result, it features a more uniform and stable molecular structure that offers enhanced protection working at extreme temperatures, greater cleanliness and a longer lifespan when compared with mineral oil.
Derived from crude oil, mineral oil is less refined, and its chemical structure is less stable. While it has a shorter life, it is a cheaper solution and can still suit equipment working under standard conditions.
It is critical that lubricant users employ the right oil type to keep their machinery or vehicle operating properly and delivering optimal performance. Here, we explore synthetic and mineral oil in greater detail, examining their advantages and disadvantages.
What is synthetic oil?
Synthetic oils are typically designed for modern machinery like high-performance engines in the latest vehicles. Today, top lubricant brands from Mobil to Total develop synthetic oils through complex chemical transformations, carried out utilising preselected molecules or directly on crude petroleum.
They differ from mineral oils because of this in-depth process that involves synthetic oil undergoing vastly more sophisticated adjustments that imbue it with advanced properties.
Chemically modified, synthetic oils contain far fewer impurities in comparison to mineral oils. On top of their synthetic base, an additive package is included to substantially enhance the oil’s performance. These specially designed additives can defend against wear, offer anti-oxidation, anti-corrosion and anti-foaming properties, supply dispersant or detergent effects and cut off oil consumption for extended service life.
Advantages of synthetic oil
Synthetic oils provide multiple advantages for equipment and its user. Synthetic oil flows exceptionally well even at low temperatures, making it excellent for cold engine starts. It also has stable viscosity and doesn’t fluidify easily, even when engines are running at high temperatures.
Its high-quality means that equipment experiences less build-up of unwanted deposits like sludge, and its outstanding lubricity means parts suffer less wear.
Benefits for synthetic oil users include lower maintenance with longer drain intervals, lower operating costs from optimised fuel consumption and an excellent return on investment as engines are protected, prolonging their lifespan.
Disadvantages
Synthetic oil does not have disadvantages in terms of performance capabilities. However, it may not be compatible with older equipment types and is a more expensive product to purchase than mineral oil. However, the cost of synthetic oil is typically offset by less frequent oil applications and the other user benefits detailed above.
What is a mineral oil?
Mineral oil is derived from crude petroleum. During a refinement process, unwanted hydrocarbons and contaminants naturally found in crude are extracted. Mineral oils are still available to buy from brands like Morris, which are ideal for older models and classic cars that were built to operate with less technologically advanced lubricants.
While they are a low-cost option, they flow slower than the latest synthetic oils, often resulting in impacted mechanical performance and greater fuel consumption. Additionally, mineral oils require more frequent changes compared to synthetic oils.
Advantages of mineral oil
The most prominent benefit mineral oil offers is its lower cost. As a result, it is often selected by companies operating on a restricted budget. It is also a better choice for some older vehicles, as their engines were not designed for modern oil formations.
Synthetic oils may be incompatible with seals, and cause havoc with sludge deposits present in older engines. Older engine models also require higher levels of ZDDP (Zinc Dialkyl Dithiophosphate). As a result, mineral oil is often favoured by firms with a fleet featuring older vehicles.
Finally, mineral oil can provide good lubrication, providing that applications are less demanding.
Disadvantages of mineral oil
Compared to synthetic oil, mineral oil has many disadvantages. It has lower thermal stability and experiences increased impurities and sludge formation. Its viscosity is also less stable, which means it alters with temperature, impacting lubrication and mechanical dependability.
Environmentally, mineral oil comes from a non-renewable fossil fuel, making it a persistent and non-biodegradable pollutant that accumulates in ecosystems.
How to select between synthetic and mineral oil
When choosing which oil is best for an application, you should adhere to the OEM (original equipment manufacturer) instructions. If you need help selecting from our wide range here at Oil Store, get in touch with the team today.
