Greetings to all.

I have a 2015 Silverado LS 4.3 V6 with 29K miles. I have changed engine oil every 5K miles. Do not follow the "Oil Life" Indicator/Monitor. Always have changed oil within 5K miles. I have taken my truck to have it done maybe twice o 3 times the most. I did last 3 oil changes myself.

Here is my issue. Fresh new oil turns black almost immediately after I changed. It is driving me crazy!!

Does anyone has a suggestion why this happen or better yet, how to prevented it?

Thanks in advance for any comment.



Louis