95 lt1
Le Mans Master
Joined: Mar 2004
Posts: 5,107
Likes: 171
From: Dublin CA
Original somewhere around 70,000 to 130,000. Or sooner if you loose a water pump and it dumps coolant onto the Opti. Or if you decide to pressure wash your engine....it will be gone. After market Opti are all over from lasting a long time to days or weeks after install.
Last edited by John A. Marker; Feb 20, 2017 at 02:35 PM.
Burning Brakes
Joined: Jul 2011
Posts: 781
Likes: 184
From: Myrtle Beach South Carolina
My 95 had a heater hose dump on the opti. I took it apart, cleaned everything and replaced the cap. Just recently I replaced the optical disc but I still have the original optical sensor. I have right at 135,000 miles On her.
Le Mans Master
Joined: Jun 2009
Posts: 6,528
Likes: 752
From: South Dakota
My LT1/LT4 cars with Optispark:
'96 45k Corvette (current)
'95 45k Corvette (current)
'96 115k Caprice (current) (water pump failed)
'94 145k Corvette (sold in '11)
'94 35k Corvette (sold in '95)
'95 54k Z28 (sold in '01) (water pump failed)
'96 115k Impala SS (sold in '03)
'95 140k Caprice 9C1 (stolen in '05)
All of these were original and I never had any problems with them even with water pump failures leaking on them.
Good luck.
'96 45k Corvette (current)
'95 45k Corvette (current)
'96 115k Caprice (current) (water pump failed)
'94 145k Corvette (sold in '11)
'94 35k Corvette (sold in '95)
'95 54k Z28 (sold in '01) (water pump failed)
'96 115k Impala SS (sold in '03)
'95 140k Caprice 9C1 (stolen in '05)
All of these were original and I never had any problems with them even with water pump failures leaking on them.
Good luck.
Last edited by QCVette; Feb 20, 2017 at 03:41 PM.
