This thread is not necessarily meant to be too serious. Just a light hearted question.
I have a '15 Tacoma 4.0 that I bought new 5.5 years ago....80k miles currently. Factory specs 5/30 and 5k OCIs....so that's what I do. Over the years it's seen mostly M1....vanilla, EP, Truck and SUV....whatever was on sale. When M1 was not sale or available my back up oil is Valvoline Full Synthetic when it was. I always run an M1 or Fram Ultra filter.
So here's an observation I've seen more than once. By the end of the interval the M1 is always noticeably darker than the Valvoline....regardless of which filter I use.
Now I know from hanging out here that the darkness of an oil isn't necessarily an indication of it's condition. I'm not even slightly worried about it in the least.
I've always chalked it up to the M1 having a bit more detergent in it.
Thoughts?
I have a '15 Tacoma 4.0 that I bought new 5.5 years ago....80k miles currently. Factory specs 5/30 and 5k OCIs....so that's what I do. Over the years it's seen mostly M1....vanilla, EP, Truck and SUV....whatever was on sale. When M1 was not sale or available my back up oil is Valvoline Full Synthetic when it was. I always run an M1 or Fram Ultra filter.
So here's an observation I've seen more than once. By the end of the interval the M1 is always noticeably darker than the Valvoline....regardless of which filter I use.
Now I know from hanging out here that the darkness of an oil isn't necessarily an indication of it's condition. I'm not even slightly worried about it in the least.
I've always chalked it up to the M1 having a bit more detergent in it.
Thoughts?