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alvin

High Oil Usage

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Guest scorpionzx1

Hi, I have a 2000 Corolla LE that has very bad piston rings and burns quite a bit of oil, in fact, I am getting an engine swap done very soon to get rid of that problem. It could be piston rings on yours, but also valve seels too. you'll have to perform a compression test to find out exactly which one, cause theres really no other way to be sure. if the car has over 100000 on it, th engine should be broken in already and you shouldn't have to worry much about how hard you drove in on the trip, but I would be concerned about how hard it was driven before you went on the trip, if it was driven hard, you just might have some bad piston rings too. lol.

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Since my last post, I've been paying attention to the bottom of my car, and have NOT notice ANY oil leak. There were water, but that was from the air-condition....

 

Any suggestions?

To recap, my car is a 2001 Corolla CE, 3-speed auto...currently 110,000 miles, I used about 1 1/2 quart of oil every 3,000 miles.

 

Also, I read it in some repair manual that 2001 Corolla CE, 3-speed auto does NOT have a PCV valve.....I don't know if that's true or not.

 

- uchok00 :ph34r:

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Also, I read it in some repair manual that 2001 Corolla CE, 3-speed auto does NOT have a PCV valve.....I don't know if that's true or not.

Pretty hard to believe if it true - PCV should be on there regardless of transmission type.

 

Did you ever get a chance to get your oil tested for fuel dilution, water contamination, etc?

 

1.5qts per 3K miles is bit high for my tastes. sv11 has a good point of trying out a semisynthetic or synthetic motor oil to see what happens. I would suggest some heavier oil - but 10w30 is plenty thick enough.

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I've been wanting to do an UOA on my car. But I don't know where I can do it. Also, I've been hearing about this Auto-RX from Bobtheoilguy......

 

I've been wanting to try it...but I'm afraid that it might make my car leak "more" oil, since it is designed to clean up the engine, and because of that, those "contaminates" which plugged up the holes, leaks, will be gone, and thus, the car will leak more....Of course, I'm assuming that I do have holes and leaks in my engine parts.

 

- uchok00 :ph34r:

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I use Blackstone Labs to do my UOA - http://www.blackstone-labs.com/

 

You can request mailers to be sent to you - they give you two plastic containers for used oil - you just pay for the service (~$20) and shipping. They usually send results in a few days - email you a copy of the results in a PDF file if you request that.

 

Auto-Rx ,may or may not cause you car to leak - some have used it to fix leaks. I would rather use a semi synthetic motor oil first - before I'd pour any additive into the engine.

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Hi folks,

 

I have a 2001 Corolla (bought in San Jose, California) with 100K now.

The car runs fine, except that when I took my last road trip (900 Miles, roundtrip)

the engine oil which I got changed just before the trip was all gone when I came back from the trip. The check oil light came on, on my way back.

Not sure, if this is expected from a car with 100K milage on it.

I did drive at 85-90 mph for extended periods during the trip, do you think, that could be the reason ?

 

There is absolutely no leak, and no other issue with the car.

Anybody noticed this kind of problem with their Corolla ?

 

Thanks and appreciate the help.

Thanks to all for replying to my message and sharing such wonderful info, you guys are amazing!!

 

Now, regarding my car:

 

I got another oil change, (4 qt. of regular oil). The oil level on the dip-stick was slightly above the Max mark right after the oil chance.

Drove for 2,200 miles, mostly highway miles with speed below 65-70 MPH and no A/C.

 

Checked the oil regularly, today i.e. after driving 2,200 Miles, the oil level is still above the Min. mark on the dip-stick. I think my car already burned about 2 Qt. of oil (I am getting another oil change tomorrow and may be add some oil-additive like Lucas??)

 

Again: there is no leak, no smoke, nothing.

 

What do you guys think, is it normal for a Corolla with 100K miles on it to burn this amount of Oil and I need not worry about it or I need to do something.

 

I think the rate of oil burn in my car is directly proportional to the speed at which it is driven, the higher the speed the faster it burns the oil.

It is possible that, It might not burn any oil at all, if I drive at let’s say 35 MPH.

 

What do you guys think, suggest?

 

Thanks again for the help.

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According to Toyota, you can burn upto 1 quart every 1200 miles and that would be ok. But I am not sure what effect it will have on the emissions system, like the catalytic converter. Some of the 98-02 corollas developed stuck piston rings. I believe it happens more often if driven at highway speeds. You could try the valvoline maxlife engine protector http://www.valvoline.com/pages/products/pr....asp?product=93

Also the difference between the max and min lines on the dipstick is 1.4 quarts. Also measure the oil level after the engine has cooled down.

 

sv11

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According to Toyota, you can burn upto 1 quart every 1200 miles and that would be ok. But I am not sure what effect it will have on the emissions system, like the catalytic converter. Some of the 98-02 corollas developed stuck piston rings. I believe it happens more often if driven at highway speeds. You could try the valvoline maxlife engine protector http://www.valvoline.com/pages/products/pr....asp?product=93

Also the difference between the max and min lines on the dipstick is 1.4 quarts. Also measure the oil level after the engine has cooled down.

 

sv11

Thanks for the info. If burning a Qtr per 1200 miles is ok, then I don't think my problem is that serious, really.

 

just so you all know, I did checked the plugs and there is no trace of any oil, just some carbon deposit (very minor)

 

all symptoms now point to a stuck piston ring, I enquired with my mechanic and he suggested replacing the enging with any used low milaege one, (aprroximate cost=1,800 including parts and labor), not sure, if it is worth doing it.

 

Thanks again to all for the help.

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Hope someone is still reading this thread.

 

I have a 2001 Corolla 5-speed and just this summer (when I reached about 150K) I started losing oil so fast that I didn't make it to my next 3000 oil change and needed to add 2 quarts. It may have been dropping in the past, but I didn't notice.

 

Mileage still very good (mostly highway 65+mph). No signs of leakage on the ground and no obvious signs on the engine. Some drop in power on hills, but still generally peppy. Haven't checked plugs. Routinely rinse oxygen sensor in air filter assembly.

 

I haven't replaced the pcv recently, so I can try that.

 

What's this oil additive that was mentioned in the past replies?

 

Seem to have computer codes that say something is not right with the catalytic converter, so that might be a sign that oil is blowing past into the exhaust, but no visible smoke. Is that possible?

 

Thanks.

Edited by commuter1

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Oil additives that were previously mentioned were Lucas products, Valvoline MaxLife engine protector, and AutoRx. There was also semi-synthetocs and full synthetics mentioned as well.

 

You could be burning considerable amount of oil and see little to no smoke produced in the exhaust. Most of this is probably clogged up in the catalytic converter. Do you remember the exact CEL codes off hand?

 

Losing a quart every ~1500 miles per Toyota's spec might be OK for them, but I would consider that fairly excessive. My 2002 has a little over 133K miles and doesn't burn a drop (other than the weird oil drain on the last oil change with SuperTech stuff). An engine that is working correctly, will burn some oil - but not that much.

 

Possible causes in our generation of Corollas are bad valve seals and stuck piston rings. You can try using additives and see if they do anything for you - but I always add a caveat with them. No additive will every fix something mechanically wrong with the engine, a bad seal or bad ring cannot be "fixed" with addtives. But they can help with swelling seals and loosening carbon deposits jammed around the rings in some engines - helping those reduce the amount of oil consumption.

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That seems like an excessive amount of oil consumption.

Normally there would be evidence of a leak, or else smoke from the exhaust. Definitely you should check into it.

Edited by Bikeman982

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