The longest time you didnt change the engine oil of ur car?

[foresterx]

8 months now with my forester, i rarely use it kasi. last time ako nag pa change oil nasa 8k+ pa lang tinatakbo ng kotse ko ngayon nasa 10k+ pa lang. what would be the downside ba? i rarely use my car as you can see and pag ginamit ko di ako na papadaan sa traffic since pag ginagamit ko forester ko week end lang and usually 5-10km lang tinatakbo kada gamit.