What is the functionality of ENGINE OIL LAMP

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Old 13 Feb 2006, 10:40 am   #1 (permalink)
vktechmails@yahoo.com
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Default What is the functionality of ENGINE OIL LAMP

Hello all,

What exactly is the ENGINE OIL LAMP on dash meant for?

Is it for oil level or oil pressure and oil condition ?

I recently had a condition where the oil is not seen on dipstick at all
and it took about 1.5 qt to bring the level to FULL on
dipstick(drain/refill capacity 3.5 qt, 99 camry LE 4cyl). I did not get
the ENGINE OIL LAMP while driving or engine running. The lamp works as
I can see it when key is in ignition position and will go off once I
start the car.

TIA.

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Old 13 Feb 2006, 11:04 am   #2 (permalink)
Daniel
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Default Re: What is the functionality of ENGINE OIL LAMP

If the oil light comes on with the ignition key at "ON" and goes off
when you start the car, it's doing its job. (measuring rise in oil
pressure)
If you wait for that light to come on while driving - it's probably too
late to avoid serious engine damage because it takes quite a loss in
oil pressure to trigger the warning light.
Your owner's manual will tell you it is the owner's responsibility to
check the oil level frequently, because it is normal for some oil to be
used during normal operation of the engine and the oil level must
always be kept between the low and full marks. (best checked on a cold
engine, level surface)

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Old 13 Feb 2006, 06:40 pm   #3 (permalink)
Don Fearn
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Default Re: What is the functionality of ENGINE OIL LAMP

Hard to believe, but true -- vktechmails@yahoo.com typed:

>Hello all,
>
>What exactly is the ENGINE OIL LAMP on dash meant for?


What exactly is the OWNER'S MANUAL in the glove box for?

It's for answering questions like the one you just asked.

Sheesh.


--
"We have enough youth; let's start looking for the Fountain of Sense." --Anon
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Old 13 Feb 2006, 11:03 pm   #4 (permalink)
onehappymadman@yahoo.com
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Default Re: What is the functionality of ENGINE OIL LAMP


Daniel wrote:
> If the oil light comes on with the ignition key at "ON" and goes off
> when you start the car, it's doing its job. (measuring rise in oil
> pressure)
> If you wait for that light to come on while driving - it's probably too
> late to avoid serious engine damage because it takes quite a loss in
> oil pressure to trigger the warning light.


You got it - when that light comes on, it's to tell you that you're
screwed.

Happened to a co-worker of mine awhile back. Don't remember the
details, but I remember something about his oil change place not
putting *something* on tight enough... might have been the plug, might
have been the oil filter...


> Your owner's manual will tell you it is the owner's responsibility to
> check the oil level frequently, because it is normal for some oil to be
> used during normal operation of the engine and the oil level must
> always be kept between the low and full marks. (best checked on a cold
> engine, level surface)


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Old 14 Feb 2006, 04:32 pm   #5 (permalink)
davidj92
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Default Re: What is the functionality of ENGINE OIL LAMP

Don Fearn wrote:
> Hard to believe, but true -- vktechmails@yahoo.com typed:
>
>> Hello all,
>>
>> What exactly is the ENGINE OIL LAMP on dash meant for?

>
> What exactly is the OWNER'S MANUAL in the glove box for?
>
> It's for answering questions like the one you just asked.
>
> Sheesh.


Couldn't agree with you more, Don.


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Old 15 Feb 2006, 01:39 pm   #6 (permalink)
Jason James
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Default Re: What is the functionality of ENGINE OIL LAMP


<vktechmails@yahoo.com> wrote in message
news:1139848854.222907.314640@f14g2000cwb.googlegr oups.com...
> Hello all,
>
> What exactly is the ENGINE OIL LAMP on dash meant for?
>
> Is it for oil level or oil pressure and oil condition ?
>
> I recently had a condition where the oil is not seen on dipstick at all
> and it took about 1.5 qt to bring the level to FULL on
> dipstick(drain/refill capacity 3.5 qt, 99 camry LE 4cyl). I did not get
> the ENGINE OIL LAMP while driving or engine running. The lamp works as
> I can see it when key is in ignition position and will go off once I
> start the car.
>
> TIA.


The oil-light comes on when the engine's oil-pressure drops to about 3 PSI
(three pounds per square inch of pressure). Now normal oil-pressure is in
the vicinity of 30 PSI or more, so the light is really telling you the
engine is stuffed or there is a serious fault in the oil-supply or if it
blinks on while driving around corners, then goes out when the car is
straight again,..that the oil-level is dangerously low. This last cause
(blinking on and off) is a reversable situation if the oil is topped up
fairly quickly.

In older high mileage engines, the oil-light can come on while the engine is
idling (especially when hot), but go-out once the engine revs increase. In
this situation the light is telling you the engine is worn, especially in
the crankshaft bearings. Many engines go on for a long time despite being
worn.

Jason

Jason


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