Originally Posted by rednecknaustin
I figured everybody would have an opinion on this. I am all knowed up on oil so i will venture off into it. If the engine calls for 30 then use 30. if it says you can use either, then use whatever you want.
me? I wouldnt every use a synthetic for anything.. but thats just me.
Maybe you don't have anything that requires it, but it still wouldn't hurt to run it and it would likely improve things. See, if you owned a bmw you would know the cold, hard truth: The manufacturers of real engines such as what goes in a bmw absolutely require that you run synthetics or you will void the warranty of the engine.