I bought my next oil change tonight and I was looking at the bottles and they've noticeably been in storage a long time, on the back it says ilsac gf4 and 3.
I know the most recent is gf5, is the formulation going to be different in these old gf4 bottles, or is it just like same formula put through the new test and upgraded in rating upon passing?
I just wanna make sure this is all the best to put in, it's a 2004 grand prix gtp if that matters at all.
I know the most recent is gf5, is the formulation going to be different in these old gf4 bottles, or is it just like same formula put through the new test and upgraded in rating upon passing?
I just wanna make sure this is all the best to put in, it's a 2004 grand prix gtp if that matters at all.