uncbasketball
New member
Whenever I buy new cars, I have always change at the 1k mark. My fear was that metal shavings from a new engine could an issue. Others have argued that today's engines are made better and this is no longer an issue. I decided to run the factory oil from the 4runner until 5k and send it in for an analysis. Here is the results. As far as whether this oil can last til 10k mi, I don't have enough experience in reading these types of analysis so I'm awaiting an answer from them.