Quote:
Originally Posted by Capnemo
Used to be that full synthetic oil was considered unwise in high mileage older motors as it was likely to cause oil leaks. I have read recently that modern full synthetic oils are less likely to do this. My T4R has 225k miles on it, a couple slow leaks, mostly or completely from the valve covers, it is less since I torqued the bolts down.
Would like to use Rotella full synthetic, what do people think? Will I leak more oil or the same?
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Do the valve cover job. It’s very easy, Once you do your research. Then if you get stuck at some point there is a video or instructions online somewhere on how to get past the obstacle. Haven’t lost any oil since doing mine and I’m using mobile 1 synthetic.
2001 SR5 4x4 Premium
2017 SR5 4x4 Premium
