Re: How to change plugs (Chrismilli)
You may want to Do one plug at a time so as not to confuse which plug wire goes where. (I have done this, not fun!!!)
There is a special tool to pull the plug wires off. On a new VR6 equipped car the plastic version of the tool comes snapped onto the hood prop. If the car is used it may be missing. It isn't mandatory but it does reduce the chances off damaging the connection between the wire and boot. No sense buying new wires if you don't need them when the tool is about $12.
Pull plug wire off of plug. Use a spark plug socket that has an insert which grips plug to aid in removing it. You will also need an extension or two.
If you meet serious resistance while trying to remove plugs and penetrating oil and modest pressure on a breaker bar or pipe do not allow the plug to come loose, consult a professional. A broken plug is NOT what you want when it is still screwed into the head. I know this from experience.
Double check your gap with a gapping tool (sometimes preset gaps can be wrong). Gap for the VR6 with OEM plugs is 0.7mm (0.024 in.) multiple electrode plugs do not require any gapping. Bosch +4 plugs are not recommended by many for the VR6.
Apply a very small amount of anti sieze compound to the threads only on each plug. This helps avoid problems the next time you replace the plugs.
Carefully, so as not to cross thread, screw the plug into hole. Using a torque wrench, tighten each plug to 25 Nm (18 ft-lb). A torque wrench isn't mandatory but it sure helps me sleep at night.
Replace spark plug boot securely.
Repeat for each cylinder.
Original VR6 plugs were NGK: BKR 5 EKU