6G Celicas Forums

its a known issue with MANY engines as they age and rack up miles.

start adding about 1/2 quart of Automatic transsmission fluid to your oil at oil changes and it'll slowly do two things.
1. clean the engine gently
2. soften and renew the seals slowly.

i no longer have any oil leaks, burn only the tiniest puff on startup, and dont loose more than 1-2mm's off my dipstick between 5000 mile oil changes. though i did also seafoam my crankcase, 1/3 can and 20 minutes idling followed by an oil change.

sounds like your burning oil.

Does it happen continuously while driving or only on start up?

If it's only at start-up, it most likely the valve seals, it is extremely typical on celica's from 77 at least to the present.
Mine have been doing that since I can't remember. usually after 100,000 miles on the clock. it's nothing major, the seals are cheap, the bugger is pulling the head to get to them and getting the right valve spring compressor (I had to fudge with one from murray's and a hot-glued deep-well socket.) I wouldn't bother unless you using up a lot of oil.
Other than that it could be(oh, my G--. the piston rings, oh no!!!) hope this helps!

25-28 on average.

When you "fill up" about how many gallons are you putting in it? i usually put in around 13 gallons with around 350 on the trip odometer... i cant really think of why that would matter, but then again i am very tired lol