Niko,

I asked at Autozone about GP and they wanted about $25 each. I told them I could get then for much less on the internet. I bought 2 from Fastlane that were about $12 each.

Even if I had Autolights, I wouldn't replace them until they failed. I have found that GP last for many years. I still have some of the original GP in the engine in my 300SD I got 13 years and 135,000 miles ago. If it ain't broke, I don't fix it.

If a GP goes bad its not a show stopper, the engine will just miss fire for a short time after starting and then run fine. The blinking GP light will usually warn of a bad GP and it can be easily changed almost anywhere.

P E H