Originally posted by bigMoneyRacing: How often do you change that Mobil 1?
Every 3,000 miles
His point was that this is a complete waste of money. If you're running Mobil 1, you should probably run it every 5000 miles as recommended by Ford.
Also, you may want to research Spark Plugs in the Zetec Mainintance forum. It appears as if the 4 cylinder (Zetec) comes with 2 Double Plats and 2 Regular Plats from the factory. I would absolutely recommend sticking with service manual recommendations. If it came from the factory that way, there's probably a reason for it.
Yup, you are right on! Read me last post. I had issues with the Autolite and they said I must replace my sparkplugs with 2 Double Plats and 2 Regular Plats from the factory.
