- Dec 25, 2011
I am going to be changing all my oil's soon and I have came accross this Royal Purple motor oil, I have heard great things about this oil. But, My main concern is changing to synthetic. I have 112,000 miles on my envoy and want to change to synthetic, And have heard stories from changing to synthetic can cause leaks and other problems, Is this possible? Thanks! Also, If anybody has used Royal Purple how do you like it??? Thanks again!