The motorcraft plugs will last you 100k.
warpd said:How common is it for the plugs to blow out and whats the best way to prevent it?
Believe it or not we all already knew that. I changed mine at 45k however00silverbullet said:I found my maintenance manual and believe it or not the spark plugs don't need to be changed until 100K miles.

I even have a whole book i bought to keep track of everything i do, install and buy for my car....