I have to change oil in our GMC 6.2L I have a bunch of 5w-20 that I picked up that I would like to use if possible. I have always used 5w-30 in it.
Can I use the 5w-20 without any issue or is it too thin? this is a 2011 with 140K on it
I thought maybe I could mix a couple Qts of 15w-40 rotella that I have here to thicken it up a little, or this a bad idea?
Can I use the 5w-20 without any issue or is it too thin? this is a 2011 with 140K on it
I thought maybe I could mix a couple Qts of 15w-40 rotella that I have here to thicken it up a little, or this a bad idea?