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Jaguar preparing for electrification decided to delete the dip stick and have no combustion engine monitoring gauges I'm surprised they never went all out and just delete the engine knowing an electric motor would be here soon. We could just cut a hole in the floor and do what the Flintstones did. lol
Seriously, absolutely ridiculous not to have a dip stick, oil pressure, water temperature, and voltage gauge.
The sensor knows exact volume/level. But the dash reading is
-averaged
-won't shft from full for a long time
The workarounds are:
-use serivce mode, which shows more accurate results (hood open, a few clicks of cruise "cancel" button will give a service reading of oil level)
-torque app with custom pids shows EXACT amount of oil (i tried a several times before releasing a PIDs - during oil swap i put 8l in crank, torque reports 8l/130mm. If i measure a drained oil volume during oil service it ALWAYS the same that the toruqe readings right before draining an oil).
6l of oil is way too low. For example, with full 8l and spiritual driving sometimes, during the drive, torque shows (yep, it show oil level on a running engine) that the level drops to 3l (<80mm). With 6l it's something like 1l, so oil starvation is quite possible.
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The sensor knows exact volume/level. But the dash reading is
-averaged
-won't shft from full for a long time
The workarounds are:
-use serivce mode, which shows more accurate results (hood open, a few clicks of cruise "cancel" button will give a service reading of oil level)
-torque app with custom pids shows EXACT amount of oil (i tried a several times before releasing a PIDs - during oil swap i put 8l in crank, torque reports 8l/130mm. If i measure a drained oil volume during oil service it ALWAYS the same that the toruqe readings right before draining an oil).
6l of oil is way too low. For example, with full 8l and spiritual driving sometimes, during the drive, torque shows (yep, it show oil level on a running engine) that the level drops to 3l (<80mm). With 6l it's something like 1l, so oil starvation is quite possible.
Wow. Given that, it seems to me that oil warning alerts should be much more aggressive. Don't know how difficult an "ADD 1 QT" alert message on start-up would be in situations where the engine is more than 1 QT low. Which was in fact the case with me the last time I checked.
Also, because these cars are so quirky with this stuff, to get the "service mode" reading at any time:
1) open the hood
2) turn on the car but do not start the engine
3) press the button on the stalk to cycle through the readings to show the "OIL LEVEL"
4) press the cruise cancel button three times
Well, there are provisions in a tune for a
"Oil level low" and "Oil level is critically low", but both are set to 0 (zero) liters and there are no such a messages in a IPC firmware, so changing these is worthless.
Making a warning on a dash is not worth it too, it would require too much time/efforts to modify both ECM and IPC tunes, it's a lot easier to check actual oil level on a phone/tablet.
Yes, the service measurement is correct, but...
After a 5000km on oil i still get 8l reding at a morining. But after a warm-up and 10minute pause i get only 6-6.5l reading (however, if, during oil service, ill put 8l in a crankcase, right after a 10minutes ill get a reading of 8l). It's not a sensor issue, since not only volume (calculated value), but a level (actual value) are affected too. I suppose it's an issue with increased viscosity, which causes an oil to drain slower.
So, measuring an service oil level at a morning may still give some incorrect reading.
As for me - i prefer a monitoring of level on a running engine (check it twice RIGHT after a oil service and you'll figure a normal level for your car @running engine).
Owners handbook is a good thing, but an actual tune of the PCM is better.
Full dipstick is set to 8.1l. While next step is 6.7l (it's way before it will even ask to add 0.5l). Its always better to have more oil than less and the diffrence is not that big to cause any issues (it is anyway lower than the windage tray and roatating assemblies won't make a contact with oil surface)
its not better to add more oil than needed a lot of manufacturers warn against this especially with newer engines, the lower mark on the dipstick or level gauge or the upper mark is were the oil is safe to be in 60 years of car ownership and owner maintenance I have never thought to overfill the sump after an oil change to more than the manufacturer recommended capacity cannot see why anyone would want to over fill the sump what good reason is there for overfilling
Ok, the upper mark on a dipstick is 8.1l
Adding a 8l of oil gives a reading of 8.0l and 129mm
And the overfill is...
So, since i really love mine engine i really would like to avoid oil starvation and havine 8l in helps a lot. And it can't harm too, the major issue with overfill may be ONLY if the rotating assemblies would touch an oil (it's not happening untill 10.5l, i;ve measured)
BTW, is the handbook is written by a same guys, who decided, that the owner don't need a coolant temp reading? And, tbh, i pretty much understand why there's a lot of oil may be missing before "add 0.5l" message will show (or even before the diffrence of oil level reading on IPC may appear)
Last edited by MoscowLeaper; 03-02-2020 at 03:23 PM.
So, since i really love mine engine i really would like to avoid oil starvation and havine 8l in helps a lot. And it can't harm too, the major issue with overfill may be ONLY if the rotating assemblies would touch an oil (it's not happening untill 10.5l, i;ve measured)
overfill causes to much pressure inside the engine affecting things like oil seals etc when you rev your engine the oil moves when that space is restricted by to much oil what do you think happens its not the amount the oil swells between hot / cold oil its the the oil not having a space to move into because there's to much in there ONLY if the rotating assemblies would touch an oil (it's not happening untill 10.5l, i;ve measured) how can you see / measure this have you xray machine
How can a pressure build if there's a PCV present? Oil pump won't provide excess pressure, there's a reduction valve on it. Im filling 8.0l for at least 60000km, i redline quite often (not to mention dual pulleys and over of 1bar of supercharger pressure, quite evil tune and other mods) and no seals/whateve issues. More to say - still original chains and tensioners while there's 110000km on engine (no noises, no slack).
Well, i have a few engines on a shelf, it's quite easy to remove an oil pan and make a measures.
BTW, what service interlval is claimed for a oil change in a handbook? Lol, i do remember that it was 24000km for mine (nonsense). Are you following it or changing oil more often?
Last edited by MoscowLeaper; 03-02-2020 at 03:43 PM.
Queen says, Factory fill is 9 liters, I believe your handbook will tell that a oil and filter change will require 7.25 litres of oil to refill
We are all correct, including you.
They suggest a 7.25 refill because you dont extract all of it under normal circumstances. i.e extracting while warm, before all the oil eventually gets to the pan and much remains in nooks.
MoscowLeaper and plc have a difference of opinion about oil levels. Big deal! The rest of us are reading your discussion and getting better informed. I learned stuff from both of you in the last ten minutes. That's what this forum is all about. There's no need to get pissy.
(Although it makes reading the threads a lot more fun.)
03-02-2020 | 05:24 AM
I'm surprised they never went all out and just delete the engine knowing an electric motor would be here soon. We could just cut a hole in the floor and do what the Flintstones did. lol
sometimes, during the drive, torque shows (yep, it show oil level on a running engine) that the level drops to 3l (<80mm). With 6l it's something like 1l, so oil starvation is quite possible.
