Recently acquired an 04 prius, originally spec'd for 5W30. I do know that Toyota has given the green light for 20 weight oils., But I would like to stick with 30 weight oils.
In the Western washington region where I live, morning temps range from 40-50F for most of the year. Therefore, my question is which over the counter xw30 oil flows best at these temperatures?
In the Western washington region where I live, morning temps range from 40-50F for most of the year. Therefore, my question is which over the counter xw30 oil flows best at these temperatures?