Over the past several days, I restored/repaired my badly hazed headlights, and replaced the "city lights" with 10000K LEDs.
I would be careful doing that, as every regap puts stress on the end of the plug and it can break off into the cylinder, which can cause much bigger issues than a slightly worn plug....also much bigger bill than a newer set of plugs at a lower mileage intervalFor me, I just pull them for inspection and regap every 6k miles or so. Oversized gaps cause premature DIC failure so I like to stay on top of them. Plus, you get a peek at how your engine is running internally.
I change them every 20,000 miles.
I find that the gap doesn't change much in 50,000 km, even on the copper BCPR-6ES plugs. I just installed the PFR plugs and hope to leave them in there for 80k km.....Well, it's very rare that I actually have to adjust the gap. But I always check.
Got the extra key made.The extra key should be a priority. Even if you just get the remote module for the key head, you can program it using your existing key blade. As far as a second key, the remote module in the key head is available here and there used, so all you need to order is a blank key cut to your car. And of course you need a Tech II/CANdi with the proper software to program.