Engine oil change intervals
Well, I've picked over the book, and from what I can tell by GM standards I have to replace my engine oil when the light comes on or once a year. As I'm sure most of you do, I'd prefer to stick to a more routine schedule, and was wondering what others do.
I've always subscribed to the idea that in some cases a change at every 3k is required, but for a lot of cars that can be extended. In my case, my Goat has been driven all highway and a little light city traffic, and I expect that to be the same the entire time I own it. There's not a ton of dust in my area, and other than the last couple days, the heat is usually not excessive. (St. Louis area) I've also decided to run Amsoil.
Given those conditions, I have no problem with changes every 5k. I'm currently at about 7,200, and the first oil change was at about 3,200. The Mobile One the dealer installed is still as clean and clear on the dipstick as it has the entire time I've owned it, and if I've burned any in that 4k, it can't be more than a 1/4 quart or so.