You can use any kind of 10w-40 oil for a nighthawk
Baby oil
Most use Synthetic Oil.
Rocket oil
They use the oil God gave them in their oil glands.
synthetic oil
You can use screen recording software like Jing, Jing is free and very easy to use.
What are you substituting the oil with? What kind of recipe? You couldn't use butter for the oil in salad dressing. Sometimes it does matter what kind of shortening you use.
fully synthetic oil
Olive oil.
fully synthetic oil
A flavourless cooking oil.