I have a second vehicle sitting in my garage for many months now and its engine oil remains relatively clean and has not been changed for as long as I can remember. Though its being used once in a while, yet I find it a waste to change it dahil malinis at ok pa naman sya. (parang gusto ko na ngang ibenta dahil walang silbi) Madalas itong gamitin ng brother ko noon pero nasa States na sya kasi. Pinapaandar ko lang every two to three weeks para lang to keep it in good running condition. Ok ba yun? Ur opinion is appreciated.