shadow993

I do all the maintenance work on my cars and upgrades and I'm perplexed over the schedule.


My car is 8 years old with 15k miles, and I've owned it for a year,. I looked at the maintenance schedule to see what needs to be done.

Why would you need to change spark plugs due to time?? If you keep clean gas in there and drive it occasionally, why is there a need to change the fuel filter every 4 years regardless of miles?

http://www.leithporsche.com/cdn.dlro...-checklist.pdf

9650max

I'm with you on this but I can't wait to see the comments.

LexVan

To prevent from getting a seized plug.

wallyworld925

I had this exact conversation with the service advisor and service manager at my local dealer. They were very up front, asking me how it runs and does it ever have any issues, which I answered "No, runs great." They both gave the same answer - "If no misses, we're not going to change to some newer/greater technology, don't touch it."

@LexVan- this would be the only reasonable answer I could come up with.

My car has 11K, so leaving it alone for now.

Ibanezgod

I had my plugs changed at 11k when the tune was performed. Granted I have more power now. But 24k service is primarily plugs and the 36k service is the drive belt. So planning on having that done next year sometime since i'm at ~32k. Haven't had any misfires.

LexVan

Porsche does not recommend nor use anti seize on plugs. Keep that in mind, too.

As for a fuel filter, does a 997 Turbo even have a serviceable fuel filter? If it does, I'd imagine the reasoning for a 4 year time frame is that the element is exposed to the fuel regardless of miles used. So less about actual filtering and clogging, and more about degradation from fuel contact exposure.

AudiOn19s

I'd be really surprised to see a seized plug. I've made it part of my yearly track maintenance on the GT3 to make sure my plugs are tight enough, for some reason, at least on the GT3..the Mezger tends to work plugs loose.

Plugs on our turbo didn't seem tight to spec either when I replaced them at 30k miles.

bodi

Replaced mine at 30000 miles and they still looked good. Don't think I would go through the effort on a turbo unless I had an issue or was performing some other maintenance that gave me access.

estrellajon

Fuel filter is definitely serviceable or replaceable. It's an easy replacement located on top left

phillipj

No offense brother but just look in your engine compartment. The fuel filter is clearly visible on the top left above the coolant reservoir. You need a special tool to remove the connector.. I changed mine and had a friend that had the tool. I Changed at 50k. It was dirty but no goo or anything like that.. Super easy. A little messy but without the tool you're screwed.

Kevin

The 997TT cranks out more boost than the 996TT, on tuned 996TT I specify 20K service schedule. The plug ground strap wears and increases the GAP. I suppose you could pull your platinum plugs and regap them..

For tuned 997TT I'd look at the 997GT2 plug change at schedule...

I have seen customer logs with knock retard per cylinder an extra 5 or 6 degree with plugs that needed to be changed (20K plus miles)..

LexVan is correct, leaving the plugs in past 30K CAN pull threads...

There are DIY showing the steps.. My recommendations is near the 20K interval for tuned cars OR those that hit the Sport Chrono running 91 octane.

shadow993

What about time on the plugs??? My concern isn't the miles, but I don't see what time has to do with plugs or a fuel filter.

I just did the plugs, wires and fuel filter on my 993. It has 45k miles and is 19 years old. The only issue was related to wires that cracked when I removed them.