Originally Posted by Broch
I changed the oil around 9500 miles.
Before this change the OBC would show 510 - 520 miles range on a full tank.
Now, although just 2 top ups since the oil change, the OBC is showing 600+ both times..
So I beleive it was worth it just for the extra miles per tank
You cant say that is because of an oil change. Much more likely to be simple bedding in/freeing up of the engine and drive train. - If you really got a 15% saving in fuel consumption a lot of other people would have noticed it by now.