3. Engine oil(revised)

There was our 3rd tutorial for those interested in. As all of them didn’t attend the first tutorial for engine oil which is basic of the basic maintenance, I addressed engine oil with revised contents. Here are those revised ones from the first tutorial. If you have any questions, please feel free to ask me through email. Next tutorial will be “How to make winter driving safe”. If you are interested in it, please apply by referring to “Tutorial of the month”.