Time to change the oil and as I look at the shelf, I have two quarts of Rotella T6 5w40 and two quarts of Rotella T4 15w40. I need nearly 4 quarts.... Is there any reason why I can't or shouldn't mix them and run a good, normal OCI?
I've read a couple of threads that speak very negatively and a couple that say it is just fine.
Has Shell commented on this at all?
Please don't suggest I simply buy two more quarts of one or the other.... That's not what I am asking.
.......
I've read a couple of threads that speak very negatively and a couple that say it is just fine.
Has Shell commented on this at all?
Please don't suggest I simply buy two more quarts of one or the other.... That's not what I am asking.
.......