It is genetic - in my family there is no history of it as it is a recessive gene but my mum and dad were both carriers. In Scotland up to 13% of the population has red hair, but around 40% of the population is thought to carry the recessive gene responsible for the world's rarest natural hair colour.
On the other hand, synthetic base oil molecules are chemically controlled, which provides increased ï¬ lm strength and lubricity over petroleum oils. The performance qualities of base oils have a marked impact on the performance qualities of the ï¬ nished product.
Synthetic Oil vs Regular Oil. Before we analyze in detail synthetic oil vs regular oil, first let us understand why we use oil in our vehicles. If you have had a chance to visit a typical garage setup or for that matter if you own a car of your own, you would have used the some kind of oil for your carÃ¢â¬â¢s engine.