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Oil life index

Tiny
ERIC1234
  • MEMBER
  • 1993 CADILLAC ELDORADO
  • V8
  • FWD
  • AUTOMATIC
  • 130,000 MILES
What is the oil life index? And why is the number going down each time I start the car? For instance it was 78 yesterday and is now 75 today?
Thursday, February 3rd, 2011 AT 7:06 PM

6 Replies

Tiny
DOCFIXIT
  • MECHANIC
  • 18,828 POSTS
That is oil life as to % left. Starts at 100% to 0%
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Thursday, February 3rd, 2011 AT 7:16 PM
Tiny
ERIC1234
  • MEMBER
  • 4 POSTS
So then if I am correct it has nothing to do with the oil pressure? I was told that it did. But from what you are saying it sounds like the number is dropping because I am leaking oil or just burning it right.
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Thursday, February 3rd, 2011 AT 7:59 PM
Tiny
DOCFIXIT
  • MECHANIC
  • 18,828 POSTS
No means how much life is left in % till next oil change
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Thursday, February 3rd, 2011 AT 8:14 PM
Tiny
ERIC1234
  • MEMBER
  • 4 POSTS
Wow, I really don't know anything so please forgive my ignorance on this topic. So oil has life? Meaning? And I changed the oil pressure switch could it have anything to do with that?
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Thursday, February 3rd, 2011 AT 8:25 PM
Tiny
DOCFIXIT
  • MECHANIC
  • 18,828 POSTS
No oil pressure switch has nothing to do with oil life it is an electronic counter to say when time for next oil change
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Thursday, February 3rd, 2011 AT 8:39 PM
Tiny
ERIC1234
  • MEMBER
  • 4 POSTS
One more if you do not mind sir, if I lower the idle will it save me gas without doing any damage? The car seems to idle at 1000 rpm's is that good or bad.
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Thursday, February 3rd, 2011 AT 9:01 PM

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