Jump to content


Photo
- - - - -

8th Gen Oil Consumption


  • Please log in to reply
40 replies to this topic

#1 Braddale

Braddale

    2nd Gear

  • Members
  • PipPip
  • 174 posts

Posted 23 June 2008 - 08:29 PM

Has anyone experienced excessive oil consumption on any 98 to 02's?

I have a 2000 with over 100,000 miles on it and have never had to add any oil between changes. Was browsing another Toyota site and they are saying there was a problem with some 2000 to 2001's with oil consumption (undersized pistons) on a very small amount of the cars produced.

The Chevy Prizm though seemed to have a higher incident of the consumption issue.

Thanks for any information.

#2 fishexpo101

fishexpo101

    I know Karate, Kung Fu, and 47 other dangerous words...

  • Global Moderators
  • PipPipPipPipPipPip
  • 9,377 posts

Posted 24 June 2008 - 02:03 AM

Seemed to be quite a few 1998-2000 owners with excessive oil consumption. A few 2001-2002 as well - even spilling over to some of the early 9th gen Corolla/Matrix. Some have it, some do not.

I'm one of the luckier ones - both of my daily drivers get extended drain schedules with synthetic and neither one drinks a drop of oil (~150K on the 2002 Corolla, ~90K on the 2003 Matrix). The problems is a mixed bag - some have damaged cylinder bores + stuck piston rings. Other just had stuck rings, and/or leaking valve seals.

There are also quite a few EVAP related issues on the 8th gen Corollas - some from topping off the tank, others just a picky ECM and stuck VSV valves or some other mystery valve/vent.

#3 timkedz

timkedz

    2nd Gear

  • Active Members
  • PipPip
  • 109 posts

Posted 24 June 2008 - 10:52 AM

I have a 2000 Corolla as well and I don't have any problems with excessive oil comsumption, yet. Although I only have 40,000 miles on mine, as of right now!

Just like Fish said, there seems to be an issue with the 1zzfe engines and oil usage, although it seems that the problem is not consistent. My personal theory is that it may involve the fact that the 8th generation corollas have an aluminum block engine and the older 7th generation Corollas are cast iron. But, then again, that might have absolutely nothing to do with it all. It's just reminds me of the Chevy Vega our family had many years ago! When we sold it in the 1980's with only 50,000 original miles on it, it was using more oil than gasoline!!!!

Since I have both an example of BOTH 7th and 8th gen engines, I can say that the 1zzfe engines are much more peppier than the 7th gen "A" engines, but, the 7th gen engines run smoother and quieter.........

Just my 2 cents worth!!!

Hope it helps a little!!!

timkedz

#4 listoff

listoff

    2nd Gear

  • Active Members
  • PipPip
  • 201 posts

Posted 24 June 2008 - 11:01 AM

How interesting, I was checking the forum just now about this same problem. I have a 2001 CE with 125,000 miles. For years, it would be 1/2 quart low when I did my oil changes. Now, out of nowhere, I'm going through a quart every 1,000 miles! I even tried to thicken up the oil with 10w40 and still no luck.

I'm thinking of trying a possible fix, and please anyone correct me if I'm thinking wrong about this...

It's my wife's car. When she starts the car, there's no smoke. I've followed her and under hard acceleration there's no smoke. There isn't a puddle of oil under the car either. I'm thinking it's a bad PCV valve? Can anyone agree with this, or am I way off base? If the valve is clogged open, oil vapors from the crankcase could be easily passing into the combustion chamber and I'm burning the oil that way. Not enough to see, but enough to reduce my oil levels.

There is one additional symptom... The way I found out about this oil consumption thing was a clacking noise while driving one day. I pulled over to see that it was 2 quarts low! I immediately filled it and it quieted down, but I can still hear it under heavy acceleration. Almost like a valve tap or something. Could this be an indication?

Thanks, hopefully this will give some insight to my problem as well as the original poster.
Mike

#5 fishexpo101

fishexpo101

    I know Karate, Kung Fu, and 47 other dangerous words...

  • Global Moderators
  • PipPipPipPipPipPip
  • 9,377 posts

Posted 24 June 2008 - 01:21 PM

Not sure if the PCV valve is the culprit, but it can't hurt to be checked out - if it is gummed up - you might notice your throttle body getting dirty very quickly. Also, it is hard to see a car burn oil from the exhaust - I've seen other cars burn a quart every 500 miles with no visible smoke from the exhaust tip.

As for engine noise - the 1ZZ-FE is known to be a noisy engine - most from the use of the timing chain vs the belt from the previous generation. Sometimes running a synthetic or synthetic blend can help with oil consumption. Has a much higher heat threshold and is not as likely to burn off/evaporation like convention motor oil and even some brands of synthetic.

Could try an get a compression test done to see if the oil if pulled past the rings or the valve seals. Some have used Valvoline Maxlife synthetic blends with very good results. Other products like Rislone and Lucas are also pretty popular. AutoRx is also very popular for the "stuck" piston ring issues on some engines - helps dissolve the carbon deposits and frees the rings.

Some people blame break-in techniques or maintenance - though I'm not 100% convinced, newer engine design with very ambitious goals will only result in some problems getting through. On my 2002 Corolla (new) - I ran it normally, varying the RPMs for the first 500 miles, then proceded to drive normally for the next 4500. First oil change at 5K on conventional oil - then only synthetic afterwards. The Matrix was used, and very heavily abused. I'll bet that the car had no oil changes since it was bought as a leased vehicle (still had the factory filter 90915-10004 + was nearly impossible remove). Ran a couple of 0w30 synthetic "flush" runs (3K drain and a 5K drain) - then stuck to my usual 7500 - 10000 mile OCI. Both cars turned out fine.

#6 twinky64

twinky64

    4th Gear

  • Active Members
  • PipPipPipPip
  • 568 posts

Posted 27 June 2008 - 06:32 AM

I'm burning oil. Roughly 1 quart every 1000 miles. I have a 1998 Toyota Corolla with 209,500 miles. I currently drive 150 miles per day for the summer. Anyhow, I am currently running 10w30 oil.

I change my own spark plugs and one of my spark plugs is dripping, drenched with brown oil as I am pulling cylinder number 2. I wonder if I'm even running on all 4 cylinders?!

My question is, will sea foam break up or loosen any stuck oil rings? Will the results be similar to that of autorx?

#7 Bitter

Bitter

    Overdrive

  • Active Members
  • PipPipPipPipPipPip
  • 2,919 posts

Posted 27 June 2008 - 07:39 AM

I'm burning oil. Roughly 1 quart every 1000 miles. I have a 1998 Toyota Corolla with 209,500 miles. I currently drive 150 miles per day for the summer. Anyhow, I am currently running 10w30 oil.

I change my own spark plugs and one of my spark plugs is dripping, drenched with brown oil as I am pulling cylinder number 2. I wonder if I'm even running on all 4 cylinders?!

My question is, will sea foam break up or loosen any stuck oil rings? Will the results be similar to that of autorx?

sparking end is soaked? run a compression test.

#8 otter111a

otter111a

    1st Gear

  • Members
  • Pip
  • 48 posts

Posted 27 June 2008 - 10:25 AM

My '01 has been burning ~1 qt every 700 miles for about the last 50,000 miles / 3 years.

The only possible side effect was that I recently had the catalytic converter replaced. The light was on for quite awhile and it needed to pass inspection. I still get 32 mpg so I figured it was worth it.

I've tried putting a lot of additives into the crankcase but none of them stopped the oil from going away.

I see no smoke on start up or when driving, but the wall of the garage where I park has seveal black spots on it that line up with the tail pipe.

Please post any diagnostic results you get. In all likelyhood they will come to the conclusion that its either the "oil control rings" or the "valve stem seals". Either way its an expensive fix and they'll tell you it would be better to get the engine replaced.

#9 cg4Jesus

cg4Jesus

    1st Gear

  • Members
  • Pip
  • 41 posts

Posted 30 June 2008 - 01:45 PM

Might as well get use to the oil usage. Keep a case in the trunk. Buy it when its on sale. Like the otter I have a 98 with 150K miles and it uses a quart every 700 miles or so. I've tried all sorts of different oils including different weights and synthetics. Also tried seafoam. Nothing made much difference. I never tried the AutoRX. Some say that helps, but from what I've seen on this forum it only gains a couple more hundred miles beteen quarts, not really worth it to me. I buy cheap oil and put a quart in about every other fillup. I average from 31 - 35 mpg so I can live with the oil usage.

I don't think it is the valve seals. My wife has a 2000 Rav4 that smokes like a freight train when you first crank it up, but is only about a half quart low at oil change time, 5000 miles. My car doesn't smoke at all when you crank it up but uses a quart every 700 miles. I'm sure the Rav4 is a valve seal issue and the Corolla is rings. Don't know if they are stuck rings, worn rings or rings that have lost their temper but I do think it is the rings. Just my take.

#10 buurin

buurin

    4th Gear

  • Active Members
  • PipPipPipPip
  • 574 posts

Posted 30 June 2008 - 07:00 PM

I only burned half my oil after running through 1/3 can of seafoam each, twice. Never burned oil before, and never burned oil after.

#11 cg4Jesus

cg4Jesus

    1st Gear

  • Members
  • Pip
  • 41 posts

Posted 01 July 2008 - 07:00 AM

I only burned half my oil after running through 1/3 can of seafoam each, twice. Never burned oil before, and never burned oil after.



I'm a little confused. You say they never burned oil before. I assume they did burn oil before you added the seafoam. That being the case, where did you add it, to the crankcase?

#12 buurin

buurin

    4th Gear

  • Active Members
  • PipPipPipPip
  • 574 posts

Posted 01 July 2008 - 10:47 AM

Into the brake booster hose. It didn't burn oil. After I put in the Seafoam and when all the fun is over, I'm down to halfway on the dipstick. I changed the oil last week and then checked, it still isn't burning oil. :D I won't bother putting it into the crankcase, but some of it can go into the gas tank.

#13 jim00ce

jim00ce

    1st Gear

  • Members
  • Pip
  • 29 posts

Posted 01 July 2008 - 12:54 PM

I have a 2000 Corolla CE with 196,000 miles that I bought new off the lot. My oil consumption has been high since about 80,000 miles. I'm now at the fill with oil and check the gas stage. I am getting about 400 miles per quart. Still runs like a top though and plan on keeping it and feeding its oil habit. I'm getting 32+ mpg in mostly highway miles.

I've done all oil changes except the first one. I ran good quality oils, mostly synthetic until I started having to add 2 plus quarts every OCI.

I now look for sales, and buy three 1 gallon jugs when doing an oil change. One for the oil change and two for keeping it filled for the next two months.

Other than brakes, tires, oil, and fluids; I've only replaced the plugs, cat convertor, and rear O2. I'm running the original water pump, coolant hoses, etc.

Its beginning to leak a little oil around the crank pulley a bit, but most of its consumption is out the tail pipe.

What I learned here, mostly, is that trying to fix this isn't really cost-effective.

jim

#14 01loadedLE

01loadedLE

    Git out of my wayee!

  • Active Members
  • PipPipPipPipPip
  • 1,166 posts

Posted 01 July 2008 - 01:02 PM

I saw someone on toyotanation say that their corolla manual ('98 if I remember right) states that its normal to burn up to one quart every 1k miles. My 01 manual states no such thing although I do burn a quart every 5k miles. If I dont add any oil between oil changes then the oil level will be slightly below the halfway point between the full and low marks on the dipstick.

#15 fishexpo101

fishexpo101

    I know Karate, Kung Fu, and 47 other dangerous words...

  • Global Moderators
  • PipPipPipPipPipPip
  • 9,377 posts

Posted 01 July 2008 - 06:04 PM

I checked in my Owner's Manual as well - nothing mentioned on oil consumption, but I could have missed it. I know there is a TSB on oil consumption, and in that - it does state that a quart consumed in XXX miles is acceptable - varies from model to model. In my book, anything more than a quart every couple of thousand miles is too much - even 1 quart per 1000 miles is a lot of oil. Would also depend on the owner - some cover less than 10K miles a year - some like me, might cover between 25K-35K a year easily.