A full synthetic oil change and a new oil filter were had today. However, The van feels different now; My MPG doesn't seem to be quite on par compared to how it was before, Especially considering this thread with the aerodynamic drag I had:
http://ecomodder.com/forum/showthrea...0-a-24779.html
I didn't go on the same trip today but I went on a similar one. I think that pulse and gliding doesn't work or I'm exceeding the best engine load, I didn't turn the engine off for this though. Also, The tires are over-inflated; I must find the most efficient tire pressure.
EDIT, 2013-September-18: I wasn't used to how the van felt after the oil was changed.