This is the latest sample from my 2015 Tacoma, which I have owned since new. Looks OK to me, except for the trend of increasing aluminum. Is this a possible problem developing? Some Tacomas of this vintage have been known to make a whining noise when started up cold; the noise disappears after warming up for a couple of minutes. My Tacoma occasionally has this symptom. The whining noise problem is believed to be caused by the oil pump. What are oil pumps made of?
8ppm over 10.3K miles is not a *huge* amount of aluminum, but it is concerning. My plan is to just run another 10K and check then. I do have an extended warranty on this vehicle, which is good for 8 years and 125K miles, so I should be covered if a real problem develops. Comments?
8ppm over 10.3K miles is not a *huge* amount of aluminum, but it is concerning. My plan is to just run another 10K and check then. I do have an extended warranty on this vehicle, which is good for 8 years and 125K miles, so I should be covered if a real problem develops. Comments?