Oil is the life blood of your engine.
It's pumped from the sump at the bottom up to the top of the head and vital lubrication points.
Due to the tremendous heat and pressure, all oils will break down over time.
As a general rule, Basic/mineral based oils break down faster than Synthetic oils, This is why manufactors that are trying to extend service intervals will stipulate surpreme quality full synthetic oils are used.
The majority of engine failures are related to oil quality and/or supply issues, so if you want to give your engine the best possibility for long term trouble free motoring the more regularly you change the oil the better.
Manufacturer specifications are designed to ensure your engine only lasts as long as the warrenty period.
Therefore, the recommended service intervals are to be considered as the MINIMUM you need to do and not the ideal.
If you want to keep your car for 10 to 15 years and have the best chance of trouble free motoring you need to be changing your oil more frequently and with a quality controlled product.
To help prove this point please feel free to watch the video below. It highlights why changing your oil is so important and why racing teams change their oils every few races or less than 400km.
At Shields Automotive we only use quality premium oils at all times.