I am approaching 55k miles on my treasured 08 S6 and planning for new plugs. Any tips, precautions, etc for changing plugs? What plugs do you reccomend? Can you suggest a good source??
Tnx, Eric
(2008 S6, 2015 S5, 2002 RT10, 2014 P85(hers), 1953 XK-120 (hers too), and a truck)
Welcome to the site.
Is this the only maintanince work your doing. What are your plans for the car. If you are going to be thinking stuff like exhaust and performance that will be a different plug. Are you doing the coil packs as well.
The answer to those questions will help get more direct answers
Audi VW Spark Plug - NGK PFR6WT
fcpeuro .com has them for $14 ea + free shipping + lifetime guarantee
ecstuning.com has them for $143.25 for a pack of 10 so 14.325 ea. + $12 shipping no guarantee
So just search the web for those plugs and find the best price. I also picked up a magnetic spark plug socket to make time just a little easier.
Just to chime in also, so if exhaust is changed from stock and air filters what plug should you be running? I presume you mean running slightly cooler plugs compared to the stock ones?
Yes thats exactly it. The more you drive the car and the more mods that are on the car the more you want to look into getting a plug on the car that will help keep the motor happy in those conditions. OEM plugs are great if your an 80 year old lady that never gets on the gas and drives to the store and back in short trips. Short trips in cold climates require hot plugs. Cold plugs pull heat way from the motor and you want that to keep the motor happy and healthy. Hotter plugs are good for emmisions but dont do much to pull out heat.
The 5.2 is a aluminum motor and getting heat out is the top priority. Stuff like the JHM intake spacers a good plug and even a good exhaust will pull out heat and help create more power while helping keep the motor happy and cooler.
When you add performance parts your able to make more power and more heat. On the stock motor the heat is great and add in the fact that the motor is already crammed into the engine bay that gives you more heat.
So back to my original questions to the op. What are the plans with the car. How far do you drive each day and where do you live. If you live in a warm climate all year dont get OEM plugs even if you never mod your car. If you live in a cold climate you want to wait till you do mods before you worry too much about plugs.
To answer your questions buddyboy. Depending on where you live and your driving style and distance along with your mods a new plug selection is a good idea
Thank you for all your replies.
My car is only rarely driven; less than 3k miles a year, mainly on long trips. I live in a mild, dry climate where it spends most of its time in a garage and under a cover. I plan no performance or suspension modifications. I have no CEL lights and had not planned to replace the coil packs.
is there a guide that shows what plugs are suited to white kind of climates etc?
Living in Ireland the weather range would be from -5c to +25c at most. Most of my driving is 30 min trips at most, and i like to plant the right foot where i can once the car is warmed up
With that low of miles I would not worry about the coil packs espically on how few miles you drive. Given you live in a mild climate and dont drive the car that much you can get away with colder plugs to help keep the motor happy and running at lower temps. If it dosent get cold out that would be a great thing to do with the plugs is to go one range cooler. One thing to look into is a fuel filter. If you let the car sit that log you should consider looking into changing that around the same time