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  #25  
Old 07-13-2015, 04:26 PM
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Question Re: Engine oil level above the MAX

This is really frustrating, something so simple and important and it's hard to get an accurate reading. For example. After the Jeep sits overnight I check the oil level before our 4000 mile trip. When I pulled out the dipstick it was at a Minimum. So I clean it reinsert it and it's at Max. I try some other methods and it's coated at or above Max. I believe the initial (Min) check because all the oil has settled back into the engine and sat overnight. So I added a little oil supposily get it above min and below max. Of course I can't check it because when I do I get the same reading at max. It didn't even register the oil I added. Just got back from the trip let it sit over night. I checked it and it's at minimum. I check it again and it's at Max. This is BS. I can't get an accurate reading. I have to believe when it sits overnight and then I check it, it's accurate. So I'm going to add some Oil. Can anyone help me with this please. It's so important to be on top of the oil level. Mike

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  #26  
Old 07-13-2015, 05:37 PM
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Re: Engine oil level above the MAX

The problem is that oil won't rise up into the dipstick tube until you break the seal. So let the Jeep sit for a while, pop the stick up an inch or so - enough to break the seal, then gently push it back in, let it sit for a sec and pull it out. Read level.

That reading should be repeatable, though you have to be wary of oil pulled up into the tube the first time you removed it.

I've had good success using that method.
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  #27  
Old 07-13-2015, 05:37 PM
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Re: Engine oil level above the MAX

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Originally Posted by Benn0 View Post
That method doesn't work for me, I kept getting over MAX readings as pulling it out would drag oil up the tube, then when you reinsert after being wiped it was collecting oil off the side of the tube and showing at being over the MAX level.

As someone posted in the Diesel dipstick reading thread:
And that would work well if the 3.0l JGC arrangement didn't drag oil up the dipstick tube to foul the reading when re-inserting the dipstick.

For consistant readings, do as described previously in this thread; lift the dipstick only 20mm to crack the seal and release the air lock, reinsert then withdraw fully to read.

That method works for me.
And me.
Do it exactly like that, and you won't have issues.
Let it sit overnight. Then:
There is an O ring on the dipstick which creates an airlock. Just raise the dipstick enough to get the O ring JUST above the top of the tube, and all is good. It's not even an inch- just break the airlock and no more.
Then reinsert, withdraw, and there is your level.

Do it once, and do it right!
Piece of cake once you get the technique right.

And do NOT overfill it, not good for seals, not good for the DPF.
Cya
David
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  #28  
Old 07-13-2015, 08:17 PM
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Engine oil level above the MAX

Quote:
Originally Posted by Futuresystem View Post
And me.
Do it exactly like that, and you won't have issues.
Let it sit overnight. Then:
There is an O ring on the dipstick which creates an airlock. Just raise the dipstick enough to get the O ring JUST above the top of the tube, and all is good. It's not even an inch- just break the airlock and no more.
Then reinsert, withdraw, and there is your level.

Do it once, and do it right!
Piece of cake once you get the technique right.

And do NOT overfill it, not good for seals, not good for the DPF.
Cya
David
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  #29  
Old 08-06-2015, 11:14 AM
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Re: Engine oil level above the MAX

The only way I get a clean clear reading on the engine oil dipstick is to leave overnight and check in the morning when the engine is cold. If I pull slowly and then reinsert the dipstick shows oil all over the flat piece at the bottom. But checking on first pull after sitting overnight gives a good clean reading. I now have over 10,000 kms. and have added about one litre of oil to keep above the minimum level. I initially changed the oil at 4,000 kms. and used Mobil 1 ESP 5-30W oil and a Mopar oil filter. My understanding is diesel engines burn oil while being 'broken in' and that this level of oil consumption is normal. This is my first diesel and the first vehicle - auto, truck, motorcycle, boat etc. that I have owned that has burned/have to add oil between oil changes, so I am a bit concerned about the actual oil consumption. Is this normal, what are others seeing as regards oil consumption on their diesels and does it stop/reduce with final break in. I have also read that some diesels take 10,000 miles to be finally broken in?
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Old 08-06-2015, 12:28 PM
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Re: Engine oil level above the MAX

SeaBee, this is really frustrating to me. Something that should be simple has added complexity to it. You better make sure you get the correct reading so you don't overfill. I used to wait over night and I always got a minimum reading so I would add some oil. But every morning it will still read minimum. Then someone on this website talked about cracking the seal just a bit reinsert then take the reading. So I waited to overnight to keep the conditions the same and expected when I read the dip stick it would be at minimum. So I crack the seal just about 1/8 of an inch placed the stick back in and got a reading at MAX. I did this a few times over the next few days and got max. When I don't crack the seal I get MIN. So make sure you crack the seal a bit to get your measurement. I guess cracking the seal allows the oil to flow up the stick. I hope that is getting me an accurate reading. Like I said, I think this is ridiculous to have to go through that to hopefully get an accurate reading.
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  #31  
Old 08-07-2015, 06:54 AM
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Re: Engine oil level above the MAX

Quote:
Originally Posted by SeaBee View Post
The only way I get a clean clear reading on the engine oil dipstick is to leave overnight and check in the morning when the engine is cold. If I pull slowly and then reinsert the dipstick shows oil all over the flat piece at the bottom. But checking on first pull after sitting overnight gives a good clean reading. I now have over 10,000 kms. and have added about one litre of oil to keep above the minimum level. I initially changed the oil at 4,000 kms. and used Mobil 1 ESP 5-30W oil and a Mopar oil filter. My understanding is diesel engines burn oil while being 'broken in' and that this level of oil consumption is normal. This is my first diesel and the first vehicle - auto, truck, motorcycle, boat etc. that I have owned that has burned/have to add oil between oil changes, so I am a bit concerned about the actual oil consumption. Is this normal, what are others seeing as regards oil consumption on their diesels and does it stop/reduce with final break in. I have also read that some diesels take 10,000 miles to be finally broken in?
Look at my earlier post on checking the oil level. Let it sit for a decent period, (overnight is good) then just carefully crack the O ring seal on the dipstick, no more than that, (it's only a few mm) then reinsert to the bottom and withdraw, and you will get a correct and consistent reading. It's not difficult, just do it like that and the reading will be consistent AND correct.

However, using a little during the running in period is 100% normal.
Virtually all engines will do that, petrol OR diesel.
Your oil consumption should settle down after that.
(Toyota were telling people that 1 litre per thousand Kay's was Ok on their 200 series V8's! What a crock!)

I added about maybe 3/4 of a litre at 4,000klm or so, and haven't added a drop since.

Cya
David
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  #32  
Old 08-07-2015, 11:10 AM
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Re: Engine oil level above the MAX

Well I am at a loss. Tried the overnight and first pull shows min. then slowly reinsert and gently pull out and oil all the way up the dipstick. So, try leaving the dipstick out for an hour, gently insert past the 0 ring seal and very slowly pull out, oil all over the dipstick again. That cannot be correct - I changed oil with the proper amount for an oil and filter change. I added about 1/3 of a litre and then as the oil kept showing min. another half and then the rest of the can. So I have added about 1 and 1/3 litre of oil since my oil change at 4000 kms. and I now have over 10,000 kms. If the difference between the min and max is a litre then even if it has not burned any oil it should be showing just over the max mark?
It seems impossible to get a correct reading, I'm going to try again with the dipstick sitting out of the engine and fully cleaned. If it reads all over again I'll try removing about a litre of oil (thank goodness I fitted the Fumoto valve), and then try reading once again.
It seems ridiculous that you cannot take a reading - perhaps a coat hangar measured and marked the same as the dipstick would allow insertion without the seal vacuum issue and the thick spring which seems to always have oil on it - perhaps a better reading - any other thoughts on this perplexing and frustrating key maintenance issue?
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Old 08-07-2015, 03:09 PM
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Re: Engine oil level above the MAX

Okay, finally success! Drained about 1 and 1/3 litres of oil from the engine using the Fumoto valve - so easy!!
Waited a while and checked the oil level and it shows just under maximum. With the false readings I had added oil and probably had about a litre too much so it was showing up into the spring part of the dipstick, thankfully I had not driven very far with too much oil. My other concern about the level of oil burning is now also a mute issue, as it hasn't burned any..
Some times I guess it pays off to neglect your vehicle and not fastidiously check the engine oil level!
The dipstick requirements to get an accurate reading should be required reading for anyone who has never had a diesel before as I have never had a problem in 50 years of driving, reading a dipstick!
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  #34  
Old 08-10-2015, 05:01 PM
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Re: Engine oil level above the MAX

Quote:
Originally Posted by SeaBee View Post
Okay, finally success! Drained about 1 and 1/3 litres of oil from the engine using the Fumoto valve - so easy!!
Waited a while and checked the oil level and it shows just under maximum. With the false readings I had added oil and probably had about a litre too much so it was showing up into the spring part of the dipstick, thankfully I had not driven very far with too much oil. My other concern about the level of oil burning is now also a mute issue, as it hasn't burned any..
Some times I guess it pays off to neglect your vehicle and not fastidiously check the engine oil level!
The dipstick requirements to get an accurate reading should be required reading for anyone who has never had a diesel before as I have never had a problem in 50 years of driving, reading a dipstick!
I think you're not alone SeaBee, many will find this confusing, and probably add oil which does NOT need to be added.
Once upon a time, dipsticks didn't have O rings, and this problem would never have arisen, period. All the emissions controls these days have made an O ring essential, thus making an airlock happen which will give false readings in many situations.
Of course many people just won't lift the hood and won't check the oil, so won't encounter this, LOL.

For the uninitiated, and just to bring this to the top, I would suggest:

1. Don't add oil just because the dip stick says minimum on your first look.
The oil needs to drain from the top of the engine for a while after shutdown (overnight is ideal), and incorrect readings are likely if you don't do as follows.

2. Any airlock on the dipstick needs to be eliminated- I usually lift the dipstick JUST enough to break the O ring seal, then walk away for a while, (not essential, but again overnight is the perfect option, so if your car is parked in a garage, lift the dipstick slightly in the evening and check first thing next morning.)

3. Finally, gently reinsert the dipstick and withdraw: you will get a consistent and correct oil level.

Obviously this could have been designed a bit better but once you know the solution, it's easy.
Cya
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  #35  
Old 08-10-2015, 06:52 PM
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Re: Engine oil level above the MAX

So you're saying to remove the O-ring on the dipstick!
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Old 08-10-2015, 08:25 PM
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Re: Engine oil level above the MAX

I can't believe there is nothing on this in the owners manual! I wonder about getting rid of the O-ring? So more folks weigh in on that option. Would it set off any code. I don't think so. Has anyone done it? If they change the oil at the dealership how do they check the oil and decide if it's at the correct level. Checked my level yesterday after it sat all night but didn't break the seal. Reading was minimum. Did it today after it sat all night. I broke the seal waited about 10 seconds and checked it. It was at Max. Mystery solved by the folks on this forum. I still think this is crazy. If the oil seal is removed and with the diesel being high compression, will it spray oil all over the place?
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