Plug Life and Ash
05-17-2023, 04:27 PM
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Retired Mech Design Engr
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Plug Life and Ash
Pulled my iridium plugs (BKR7EI IX) after about 15K miles. Quite a bit of ash on them.
I am cruisng fairly lean (15.8 - 16.0).
How common is it to have ash buildup? Street turbo, 93 Octane, usually Shell, but not always.
What kind of life are folks getting from these plugs?
DNM
I am cruisng fairly lean (15.8 - 16.0).
How common is it to have ash buildup? Street turbo, 93 Octane, usually Shell, but not always.
What kind of life are folks getting from these plugs?
DNM
Last edited by DNMakinson; 05-18-2023 at 09:30 AM. Reason: Typo on NGK P/N, corrected "L" to "K".
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