Some certain bacteria can grow in motor oil although not all bacteria can grow in motor oil.
Certain bacteria have actually evolved to be able to thrive in oil rich environments and especially in used motor oil and actually use the motor oil as a food source.
As a result this can lead to microbial contamination of any oil systems and fuel systems.
Examples of bacteria that can thrive and grow in motor oil are anaerobic bacteria like Clostridium botulinum which can grow in oil if it has additional nutrients and the bacteria of the Pseudomonas species which has been identified to be able to metabolize and degrade motor oil and it uses the oil as a source of carbon and energy.
When it comes to synthetic motor oils and full synthetic motor oil there is a key difference between synthetic blend and full synthetic oil.
Synthetic blend oil is a mixture of synthetic and also conventional oil, which provides a balance of cost and performance.
And full synthetic oil is made entirely out of synthetic based oils which provides for a higher purity and performance.
Full synthetic oil is completely engineered in a lab, which results in a higher quality, more stable and also a longer lasting motor oil.
The full synthetic oil provides better protection against wear, sludge buildup and also extreme temperatures and can help extend the life of the engine that the full synthetic oil is used in as long as you change the oil as often as you should.
Regular synthetic blend oil is also a good oil and combines a portion of the synthetic motor oil with the conventional motor oil.
Regular synthetic blend motor oil does provide some of the benefits of full synthetic motor oil, such as improved lubrication and improved protection although at a lower cost than full synthetic motor oil.
Full synthetic motor oil also provides the engine with better performance, including longer intervals between oil changes and greater protection of the engine and engine components including the bearings against wear and tear.
Synthetic blends are a great compromise between cost and performance when it comes to synthetic motor oils and full synthetic motor oils.
Full synthetic motor oils cost more than regular synthetic motor oils but the extra cost can be worth it.