Yet another oil overfill.
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#24
Not significantly. Ambient temps generally are within 40 degF of the 72 degree benchmark accounting for ~4 oz of oil expansion/contraction. When warm, oil can be 170 degrees above that, amounting to as much as 1/2 qt.
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death1ord (02-26-2018)
#25
#26
More difficult than a dipstick apparently! Thanks for talking me off the ledge and saying that it is not THAT bad. I was going to call the dealer and make a tech come down & do it! But... I couldn't even get through to anyone, Monday morning and all. Although I have seen that others have done it, I'm guessing it would have been a tough sell to this dealer. The one that said they would do "whatever it takes" to make it up to me after they lost my paperwork for 10 days. Ya right...
My buddy has a pump so he is going to come down & help. So now I have to spend MY time AND my buddy's time doing this, to make up for the incompetence of the dealership. What me bitter?
But I know I haven't gone through 1/1000 of what some of you folks have so sorry for the rant...
My buddy has a pump so he is going to come down & help. So now I have to spend MY time AND my buddy's time doing this, to make up for the incompetence of the dealership. What me bitter?
But I know I haven't gone through 1/1000 of what some of you folks have so sorry for the rant...
#27
Its totally justified. These are expensive machines and also somethings we look after. A dealership's incompetence should not be the reason for our headaches and waste of time. Thankfully, its not THAT bad, but if it would have been BAD, you would have have to spend a ton of time and effort trying to figure out how to deal with it. I hate dealing with customer care reps. They just don't care about you, neither does any dealership after they have sold the car to you.
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Misujerr (02-26-2018)
#28
#29
The instruction to check the oil when warm/hot is new - it was never part of oil-checking instructions previously for Jaguar engines (or any other as far as I am aware). Indeed the instruction was always to wait for several minutes (as it is now) to allow the oil to drain into the sump to provide a reasonably accurate reading. Indeed, this instruction was embossed on Jaguar disptick handles.
I doubt that the modern Jaguar engines REQUIRE the oil to be checked when hot (rather than cold) - the admonition is there simply (as before) to make sure that most or all of the available oil has returned freely to the sump. There is no admonition to NOT check the oil cold, is there? not in my handbook. So I still cannot see why a cold check would not be appropriate.
Last edited by sov211; 02-26-2018 at 03:23 PM.
#30
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#31
#32
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Download the AJ133 Technical Training document from my Dropbox here: https://www.dropbox.com/s/8y4iax9hm2...%20V8.pdf?dl=0
and check out pages 69 and 70.
From my reading the reason JLR say you should warm the engine up and then wait ten minutes before checking the electronic oil level indicator is so that almost all the oil has drained back into the sump, and not because the oil needs to be at any particular temperature.
I have checked the oil level indicator under a range of conditions - left overnight stone cold engine, hot engine, warm engine, follow 10 minute wait procedure and so on, and I get the same reading every time - "Oil level OK" and smack on the Max mark.
#33
OzXFR is correct the oil level sensor is a combined level plus temperature sensor.
The delay in getting a reading after running the engine is to allow oil to drain back to the sump, it will indicate "level unavailable" in normal mode until the appropriate time interval, about 8 minutes.
An immediate reading can be obtained by raising bonnet (hood), selecting oil level reading via car information menu then pressing cruise control cancel button twice in quick succession.
One final point is that if the car is on a slope when measuring this can lead to it displaying over filled, or possibly under filled depending on direction of slope.
The delay in getting a reading after running the engine is to allow oil to drain back to the sump, it will indicate "level unavailable" in normal mode until the appropriate time interval, about 8 minutes.
An immediate reading can be obtained by raising bonnet (hood), selecting oil level reading via car information menu then pressing cruise control cancel button twice in quick succession.
One final point is that if the car is on a slope when measuring this can lead to it displaying over filled, or possibly under filled depending on direction of slope.
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#37
From my reading the reason JLR say you should warm the engine up and then wait ten minutes before checking the electronic oil level indicator is so that almost all the oil has drained back into the sump, and not because the oil needs to be at any particular temperature.
I have checked the oil level indicator under a range of conditions - left overnight stone cold engine, hot engine, warm engine, follow 10 minute wait procedure and so on, and I get the same reading every time - "Oil level OK" and smack on the Max mark.
I have checked the oil level indicator under a range of conditions - left overnight stone cold engine, hot engine, warm engine, follow 10 minute wait procedure and so on, and I get the same reading every time - "Oil level OK" and smack on the Max mark.
#38
#39
#40
Pretty sure the AJ133 and AJ126 engines already do this.
Download the AJ133 Technical Training document from my Dropbox here: https://www.dropbox.com/s/8y4iax9hm2...%20V8.pdf?dl=0
and check out pages 69 and 70.
From my reading the reason JLR say you should warm the engine up and then wait ten minutes before checking the electronic oil level indicator is so that almost all the oil has drained back into the sump, and not because the oil needs to be at any particular temperature.
I have checked the oil level indicator under a range of conditions - left overnight stone cold engine, hot engine, warm engine, follow 10 minute wait procedure and so on, and I get the same reading every time - "Oil level OK" and smack on the Max mark.
Download the AJ133 Technical Training document from my Dropbox here: https://www.dropbox.com/s/8y4iax9hm2...%20V8.pdf?dl=0
and check out pages 69 and 70.
From my reading the reason JLR say you should warm the engine up and then wait ten minutes before checking the electronic oil level indicator is so that almost all the oil has drained back into the sump, and not because the oil needs to be at any particular temperature.
I have checked the oil level indicator under a range of conditions - left overnight stone cold engine, hot engine, warm engine, follow 10 minute wait procedure and so on, and I get the same reading every time - "Oil level OK" and smack on the Max mark.
That said since there *is* a temp sensor and I presume an oil pressure sensor (since the car can apparently detect catastrophic loss of oil pressure), one wonders if JLR could make 'sporting gauges' available in software - the lack of which I believe has been lamented on this board(?), 'cos proper sportscars are supposed to have them(!)
EDIT: - there is probably no oil pressure sending unit, so much for that idea. I gleaned that catastrophic low oil pressure detection is probably inferred from the correct (or not) operation of the Variable Camshaft Timing (VCT) unit, which relies in oil pressure to operate, if it isn't working right the ECM flags low oil pressure warning...
Last edited by mshedden; 02-26-2018 at 09:43 PM.