Oil Changes - ZR-1 Net Registry Forums

robs90zr1 · 09-11-2004

New ZR1 owner. I've owned 3 N.C.R.S Top Flight Vettes. 1 - 65 / 1 -68 / 1 - 70 & I have always done my oil changes. Someone in ZR1 land tell me the correct way to change the oil in my 1990. I've been told it held 12 quarts & the owners manual says 8.6 quarts. Do you have to drain it overnite ??? What's up ?? ---- Rob

Wayne · 09-11-2004

Quote:

Originally Posted by robs90zr1

New ZR1 owner. I've owned 3 N.C.R.S Top Flight Vettes. 1 - 65 / 1 -68 / 1 - 70 & I have always done my oil changes. Someone in ZR1 land tell me the correct way to change the oil in my 1990. I've been told it held 12 quarts & the owners manual says 8.6 quarts. Do you have to drain it overnite ??? What's up ?? ---- Rob

Welcome Rob
When you change the oil about 3.4 qts. stays in the engine. You can not get it out.

FASTZR1 · 09-12-2004

Allow a couple of hours after the engine has been running and then drain until it no longer runs out! 9 quarts with the filter does fine. My'91 uses a touch of oil at high RPM's, and I exercise her often!

Enjoy!
Johnny B

09-11-2004	#1
robs90zr1 Join Date: Sep 2004 Location: Canton, Ga. Posts: 7	Oil Changes New ZR1 owner. I've owned 3 N.C.R.S Top Flight Vettes. 1 - 65 / 1 -68 / 1 - 70 & I have always done my oil changes. Someone in ZR1 land tell me the correct way to change the oil in my 1990. I've been told it held 12 quarts & the owners manual says 8.6 quarts. Do you have to drain it overnite ??? What's up ?? ---- Rob

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09-12-2004	#3
FASTZR1 Join Date: Apr 2004 Location: Murfreesboro, TN Posts: 10	Allow a couple of hours after the engine has been running and then drain until it no longer runs out! 9 quarts with the filter does fine. My'91 uses a touch of oil at high RPM's, and I exercise her often! Enjoy! Johnny B