I have several cars, none of them trucks; My Vehicross is a 1999, just got in in January. It consumes about 1 quart of oil every 500miles; I am not sure as yet if it is worse on highway or local; I am wondering how "normal" this might be for the Vehicross engine and where the oil might be going. I have absolutely no visible leaks. the truck has 100K miles and I've fully updated it; the fuel millage is below spec at 15MPG highway. I love my vehicross and recaro red leather anyway! Thanks all!