Question about 1997 Lexus LX 450

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Emgine oil shortage

I seem to be adding about a liter of engine oil every 2 weeks without noticing any visible leakages in and around the engine. Please advise.

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There are 2 reasons for this first you have a vehicle with i'm sure at least 100,000 miles on it this means that the valve seals are most likely hard and not soft like the should be,and therefore the oil seeps down into the piston cylinders and get's burned. Second you have an oil ring on the piston and if this is worn oil will be brought up through pistion from oil pan and burned as well. now most oil leaks occur either around the valve covers or the oil pan, however there are seals on the crankshaft as well and they tend to leak over time. unless there is a puddle under the vehicle while it's parked I would say that either the valve seals are the problem or piston oil ring is the problem or both. the only way to solve it is to have engine overhauled, this of course is not cheap.

Posted on Nov 07, 2008

  • nenchin josiah May 22, 2013

    ok, you have made a lot of sense sir. the car in question is a 1997 Mitsubishi carisma GDI 1.8ltr. it also makes ping sounds when about to commence movement or when the AC is turned on. what do i do?



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Engine oil consumption one liter per 3000 KM.

It depends on why/where the oil is going. The following discussion presumes there are no visible leaks, Be sure and check the drain hole on the bell housing for oil leakage.

If you are using a low viscosity non-synthetic oil, and are in a hot climate, and you routinely drive at freeway speeds, up to 15% of the oil will evaporate!!
The rate it is using is not 'excessive', and is no concern unless it increases over time.
It is actually PREFERRED (for long engine life) to have some consumption requiring fresh oil addition between changes.
Another sneaky cause can be a mis-marked dipstick leading to overfilling the crankcase. Next oil change, carefully note the oil level after running a few minutes, letting it sit 5 minutes then checking--with ONLY the manual stated quantity (use only the amount specified)
You might try running the oil level near the minimum level to see if the rate of use decreases.

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Loss of oil in 1997 Mitsubishe Starwagon

Hi David, Some oil leakages occur only when the engine is running. As you've had the vehicle on a hoist lift and inspected underneath and discovered no major signs of leakage I suggest you start the engine and with the vehicle stationery, press the accelerator pedal so the engine is at about two thousand six hundred Revolutions per minute (RPM) With the engine running at that speed observe the exhaust. I believe you will then see bluish gray smoke being omitted. If I'm correct it will mean an engine rebuild as the smoke will indicate oil burn and defective piston rings. Indecently the usual cause is poor servicing and neglecting to replace the air filter. Regards John

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I have a 02 chrysler voyager 3.3 liter, i use 10w30 synethic oil, and its been consuming alot of oil, i have to add a quart in 2 weeks, i only drive 20 miles a week. the garage had checked the valve and...

A quart of oil is a little too much too soon. It seems that the engine needs a change of piston rings, including the oil scrapper rings. To check if you do need this, put a finger in the exhaust pipe when it is cold and rub against the pipe's insides. If your finger comes out black with oily soot then my doubts are confirmed.

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I always have shortage of oil in my engine after 4 week after servicing or changing my engine oil

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Hiya I have a Vauxhall Astra R Reg and having a few problems.... Around 3 months ago I changed the thermostat as there was only warm air flowing into the car, even after it had been running for sometime -...

Hi and welcome to FixYa!

Yes it can be another thermostat issue. We can't really know the thermostat's life span for it can break in any given time. Regarding the oil issue. It can really be lower on cold start but tends to rise when engine is warm. Since there's no visible leak and no water in oil then you can stop worrying.

Hope this helps and thank you for using FixYa! Have a good one!

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Car seem to be burning oil, i add oil every week

If you are adding oil every week; then the vehicle is definitely either leaking oil or burning oil. Providing that it is in fact burning oil and not leaking it; you will need to find out what the faulty component is in the engine so that you know how to go about proceeding with repairs. Performing a compression test and a cylinder leakage test should help you to verify the faulty engine component.

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I have put 6 liters of oil inthe truck in the last 2 months. Its not leaking out and not visibly buring the oil either. The truck runs good and doesn't seem to be affected by this. i just cant figure out...

the magic fairy appears to be at work ,if its not leaking then its burning it ,which means valves guides or rings are worn ,and with your enviromental disaster monster engine you would not notice the loss in power in such a small vehicle ,we pull 40tons of loaded truck here with a smaller engine in europe

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Oil leaks

First of all, which engine does your cavalier have? Some GM engines around that time had problems with the intake manifold gasket leaking oil where the manifold bolted to the top of the engine block, but if I remember correctly, it was in the 3.1 liter V-6 engines. If your car has a 4 cylinder engine, I am not aware of any inherent oil leak problems.
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