Why is my car using too much oil?
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1998 Volkswagen Passat Question: why is my car using too much oil?
Answer #1Bret Bodas from RepairPal Test Shop, November 30, 2009, 13:16Master
You'll need to have it diagnosed to know for sure, but there are a few things that cause an engine to use oil. They normally involve oil leaking externally or an internal oil leak into the compression chamber. Here are some possibilities:
1. External Oil Leakage
2. Worn piston rings
3. Worn Valve Guides
4. Malfunctioning PCV System