[highbeam]

Originally Posted by Weezer

I disagree. There are detergents and other differences in the oil that would make it unwise to change to another brand of oil from your usual. I have always used the same type of oil in my vehicles and I have a lot less trouble than when I was using various types of oil.

I concur with this. I remember my father telling all of us (me and my brothers) that when you decide on a type of oil, it is best to stick to that oil.

[Slowpoke]

That is actually true THEN but now with the newer engines you can change oil brands or even mix oil brands. With the newer engines, it is usually a thinner oil though so watch out for that.