2003 Mazda Miata Using Oil

2003 MAZDA MIATA
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WWONKA
  • MEMBER
  • 2 POSTS
Engine Performance problem
2003 Mazda Miata 4 cyl Two Wheel Drive 110000 miles

Over 3-4 weeks I keep having to add a lot of oil to the car engine. There are no visible leaks, spotting etc, so I'm wondering whats going on.
May 31, 2009 at 11:57 PM
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MMPRINCE4000
  • ✓Experienced Mechanic
  • 8,548 POSTS
It is either leaking it or burning it.

One way to check is to get a compression tester hose, remove plug, screw in hose, attach to compressed air, set compressor at 50psi.

If air comes out valve cover, then rings, if air comes out throttle body, then intake valve, if air comes out exhaust pipe, then exhaust valve.

Could also be valve stem seals, or guides.
Jun 1, 2009 at 1:19 AM
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