03/19/2026
Oil Changes – Seems Simple, but Is It?
We all know oil changes are important for vehicle maintenance; however, oil changes seem to also be the most overlooked maintenance item, even though it is typically the least expensive overall.
Maybe if we all knew a little more about oil and how critical it is to engine longevity and overall engine performance, we may be more apt to get that oil changed more regularly.
The first thing to know is that no specific “brand” of oil comes fresh from the ground. Crude oil, as it is known, is simply crude oil. What makes oil specifically branded is how it is refined and that brand’s proprietary blend of additives. Each oil brand has its own additive blend and chemical makeup that addresses all the things oil does, like engine cleaning, wear protection, viscosity variation, and breakdown control. For example, Valvoline oil does not become Valvoline oil until after the whole refining and additive blending process is complete.
The next thing to know is the difference between conventional oil and synthetic oil. Conventional oil is what we commonly think of when we think of oil. Its base comes from being pumped from the ground. It is a chemical amalgam of molecules, making it less stable at extreme temperatures. Synthetic oil’s base oil is manufactured in a lab from scratch. Its chemical makeup is pure, uniform, and therefore more stable in more variable heat and performance situations. Each brand’s signature blend goes into a conventional base, a synthetic base, or a blended base with both conventional and synthetic.
So, the base oil explains the oil’s type – conventional or synthetic – and the additives determine the oil’s brand.
Finally, the oil life monitor systems are another tool to help with keeping oil changes consistent; however, they do have limitations. They use algorithms to measure driving habits, engine idling and engine load, and engine temperatures, but they cannot measure actual oil contamination or low oil levels; they do not directly measure oil quality. So, even though these oil life monitors are great tools, they do not take the place of regular checks and maintenance.
Helpful links:
https://www.valvolineglobal.com/en-eur/oil-life-monitors-are-they-really-accurate/
https://www.valvolineglobal.com/en/blog/product/synthetic-vs-conventional-motor-oil/