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Hi, I have a 97 Deville which is new to me. I changed the oil with the required 7 1/2 quarts of oil. The reading on the dipstick is not on the top lines of the dipstick. Where should the reading be? Thank you.
 

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The correct reading of 7.5 qts would be in the middle of the crosshatch mark. If it's at the top, it's .5 quarts overfilled and that will be consumed quick by the PCV system.
 

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White Diamond '03 DHS (with DTS floor shift)
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Even lower than that is just fine. When the oil drops off the tip of the dip stick you STILL have 5.5 qts left.
I only put 7 qts in at an oil change just to make it easier.
 

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2002.5 F55 CORSA STS, 2014 Explorer XLT FWD
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Hi, I have a 97 Deville which is new to me. I changed the oil with the required 7 1/2 quarts of oil. The reading on the dipstick is not on the top lines of the dipstick. Where should the reading be? Thank you.
Here's a representative Northstar dipstick:

<=== ADD XXXXXXXXXX <-- OPERATING RANGE ===========oo========================O

Please read this Technical Service Bulletin (the link in Post #1), especially the paragraph on page 3 concerning proper oil level.

http://www.cadillacforums.com/forums/northstar-engines-system-technical-discussion/198220-northstar-ring-cleaning-procedure-proper-oil.html
 

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when i change my oil with 7.5 quarts and a napa 1522 filter on a level surface its ALWAYS 3/4 the way up the hash marks or what ever you call them
 

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White Diamond '03 DHS (with DTS floor shift)
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1/4, 1/2, 3/4 :noidea: It's not all that critical.
 

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1/4, 1/2, 3/4 :noidea: It's not all that critical.
your right but the last time this subject brought up i responded with the same and i was told by another board member that i was overfilled or i was using too small of an oil filter
 

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White Diamond '03 DHS (with DTS floor shift)
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:bigroll: If yours was reading 3/4, it must be longer than his. Dipstick envy perhaps?
 
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