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.
The major difference between oil and gasoline is the fact that gasoline is a fuel derivative of oil. Its name is shortened to gas in the United States and called petrol, w â¦ hich is shortened from petroleum spirits, in other places around the world. Other fuel derivatives of oil are ethane, diesel fuel, jet fuel, kerosene and natural gas.