According to specialists and producers, the engine oil must be changed after 1 year or after you have reached 7,500 or 10,000 miles (depending on the engine). But this Audi TT owner has decided to use his car for over 83.000 miles without a single oil change. 

The pictures of the totaled engine were published several places. 

One of my work buddies sent me some pictures of an Audi TT 3.2 that hadn’t been serviced in over 83,000 miles!!! That is one hell of an extended drain. The pictures speak for themselves", says on a post on the Audi TDI forum. 

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As you can imagine, we don’t know why the insane man had stopped changing the oil but the only possible thing to do in order to keep the car running is to replace the engine. After all, we have one question. How did the engine keep running for so long with no maintenance?

Source: Jalopnik