I have had my VX going on 13 years now and when i first got it i noticed it did use oil so the dealer ran an oil consumption test myVX used 1 qt. every 3000 miles. the dealer then contacted izusu america in California they said the motor was set up to use 1qt. every3 to4 thousand miles, none of the shop machanics could believe it, but for 13 years every 3 to4 thousand miles i either change the oil or add a qt. so i recomend just to deal with it. thats just the way the motor is set up.