89 2.9 uses oil

chilsam · #1 (**permalink**) 04-09-2011, 10:06 PM

89 2.9 using oil run compression test 183 on the high 178 on the low vacumn is at 18+" one day to a low of 17" on another has good power and throttle response I can c or feel no blow by from valve cover, when idling fine when blipping throttle itll smoke? Any ideas? THANX!!

twigsV10 · #2 (**permalink**) 04-10-2011, 12:03 AM

The 2.9 likes to leak oil , I have a 89 2.9 with 206k uses 1qt by 1500mi 2qt by 2500mi on add by 3500 and change the oil runs grate no blow by most leaks fixed.

chilsam · #3 (**permalink**) 04-10-2011, 03:44 AM

I do not know, it does not leak it burns it valve seals?

Old93junk · #4 (**permalink**) 04-10-2011, 11:45 AM

2.8,2.9 Engines need almost regular replacement of valve guide seals as part of their maint.
That would be my bet on oil consumption.