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Another oil dipstick reading problem.

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Old Oct 11, 2019 | 08:42 PM
  #1  
'88 E-350's Avatar
'88 E-350
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Fleet Mechanic
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From: Los Angeles, Ca.
Another oil dipstick reading problem.

The stick in my '91 E-350 reads much higher on one side than the other, bottom of crosshatch on one side and above top of crosshatch on the other. It doesn't matter if I check it hot or cold, even after sitting a couple days, so it's not oil dripping down coating one side. My '88 doesn't do this. Anyone know which side is correct?

Option 2 is to do an oil change. Anyone know how much oil it should take with an FL-1995 to get to the top of the crosshatch? Or how much oil in the pan without running it to get to the top of the crosshatch? If I can see where it reads with a know correct amount of oil I'll know which side of the stick is correct.
 
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Old Oct 11, 2019 | 09:19 PM
  #2  
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should be 10 Quarts including filter change
 
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Old Oct 12, 2019 | 12:21 AM
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'88 E-350's Avatar
'88 E-350
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10 is the standard capacity, so about an extra qt. using an FL-1995?
 
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Old Oct 12, 2019 | 12:46 AM
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Originally Posted by '88 E-350
10 is the standard capacity, so about an extra qt. using an FL-1995?
yessir I believe that is correct 11 QT with the PSD filter
 
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Old Oct 12, 2019 | 09:31 AM
  #5  
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The stick in my '91 E-350 reads much higher on one side than the other, bottom of crosshatch on one side and above top of crosshatch on the other. It doesn't matter if I check it hot or cold, even after sitting a couple days, so it's not oil dripping down coating one side. My '88 doesn't do this. Anyone know which side is correct?
That's a weird one, but maybe vans have a different dipstick tube than pickups. Mine reads the same on both sides plus I've never forced it, but the stick only goes in easily if the dipstick handle is facing the original factory direction. And I've never noticed a difference checking it cold or hot as long as I gave it a few minutes to drain back down when hot.
 
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Old Oct 13, 2019 | 09:43 AM
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'88 E-350's Avatar
'88 E-350
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If it were just a van thing I'd sorta get it, but I have two only 3 years apart that act differently. I guess I should check & see if the tube is bent or something. Both seem to go in & out with about the same resistance.
 
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Old Oct 13, 2019 | 12:50 PM
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This may sound odd but has anyone checked the oil and wiped the stick off with a rag that had wax on it? The lower level should be what it is. Its like checking an auto trans after you added some oil without waiting a bit. Be the best is to change the oil, mark the stick and roll on. I have found, over the years, dipsticks are about as reliable as ordering fast food at a drive threw.
 
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