yes it has to
yes
Yes they are... They're flattened corn kernels. In their natural state - corn kernels are small, roughly round 'seeds'. They're harvested - and flattened into cornflakes - before being roasted.
you don't make crude oil. Crude oil is natural oil after it has been sucked up from the earth, before it has been processed
Change the oil/filter if it is due a change. Otherwise it is not necessary.
The seeds are processed into cottonseed oil, while the seed husks are used as a feed for livestock.
Yes. The idea is usually to add it to the old oil and then flush it out with the oil change. Read and follow the instructions for the product you are using.
Sesame Oil or Sunflower oil. Some prefer to use Virgin Coconut oil - just make sure it is cold pressed and not processed.
An oil change is when you change the oil of your car. Once in a while, cars need to have an oil change because their oil get used too much and needs to be changed.
3000 miles on oil and filter, Then change
Petrol is processed oil.
because there are too many substances in it, all with different boiling points