Spark Plugs
Jake34
01-18-2007, 10:55 AM
The 2001 Grand Prix GT now has 123,000 kms, when is the suggested time to replace the plugs?
BNaylor
01-18-2007, 01:18 PM
According to GM the OEM AC Delco Platinum (Double) spark plugs are supposedly good to 100K miles or 160,000 kms.
However, I would replace them before that interval. Right now you have around 76,000 miles which is a good time to replace them. However, I would consider replacing the ignition wires at the same time. The AC Delco Premium Silicone 7mm wires.
However, I would replace them before that interval. Right now you have around 76,000 miles which is a good time to replace them. However, I would consider replacing the ignition wires at the same time. The AC Delco Premium Silicone 7mm wires.
Automotive Network, Inc., Copyright ©2026