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#1 |
![]() Join Date: Nov 2011
Location: Dunbarton NH
Posts: 7,355
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Does my '90' have the ability to calculate when the oil needs to be changed, or does the light come on at a certain mileage. As a side note, it turned itself back off. TIA. - Steve
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#2 |
![]() ![]() Join Date: Jun 2005
Location: pittsburgh
Posts: 4,633
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i'm 99% sure it's mileage based.
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It's not the car, it's the people - Doug Johnson 90 r/r "KEYS ON" nick named "T.L.B" |
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#3 |
Join Date: Mar 2009
Location: Orlando, FL
Posts: 1,828
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Not mileage based - it's a rev counter, basically. There's a complex algorithm based on number of engine revolutions, and oil temperature, and possibly some other parameters.
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2004 Z06/Z16 LeMans Commemorative Edition 1991 ZR-1 #302 White/Gray (sold) 1991 ZR-1 #1147 Red/Saddle (sold) |
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#4 |
![]() Join Date: Nov 2011
Location: Dunbarton NH
Posts: 7,355
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VetteMed, they could do that in 90 with OBD I? And, why did it go back out. Maybe it assumed I always drove like a nut and, well, I guess I always do.
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#5 |
Join Date: Mar 2009
Location: Orlando, FL
Posts: 1,828
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Yep, as long as there's a crank position sensor, the number of revs can be monitored.
Not sure why it would have gone out, though. That's odd to me.
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2004 Z06/Z16 LeMans Commemorative Edition 1991 ZR-1 #302 White/Gray (sold) 1991 ZR-1 #1147 Red/Saddle (sold) |
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#6 |
![]() Join Date: Nov 2011
Location: Dunbarton NH
Posts: 7,355
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Does it normally come on with "key on"? Maybe it goes out after a certain number of key starts? Seems unlikely. Maybe the bulb poped.
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#7 |
![]() Join Date: Jan 2009
Location: Portland Oregon metro area (Washington side)
Posts: 3,207
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To check for popped light just turn the key on.
The dash lights all come on briefly.
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Scott ![]() Vett owner since 1979._It's about the car and the people |
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#8 |
![]() Join Date: Feb 2011
Location: San Marcos CA
Posts: 1,802
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My 95 LT1 car used to get around 5500 mi between change oil lights based on my driving routine. I'm expecting the same for my 91 w the LT5, but i will keep an eye on the mileage just in case. I don't really like to go over 6-7k on oil changes unless it is all highway.
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#9 |
Join Date: Aug 2008
Location: Houston 90 Red ZR-1
Posts: 2,320
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I believe it. Mine comes on every 1,000 miles. I rev high allot. And mine drinks way more oil than 1 quart every 2500 miles. More like 4 quarts.
Last edited by rhipsher; 06-12-2012 at 01:30 PM. |
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#10 |
![]() Join Date: Jul 2005
Location: Las Vegas, Nevada
Posts: 777
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It is based on rev's and temp. However, it must be reset each oil change, and it is a bit more complicated then it is resetting the fuel milage computer.
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JB 1990 #148 Red/Saddle Haibeck AYBKG5 Chip/RC Engineering/Flowmasters/K&N/Samco/Fuzzy Dice :cheers: |
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