LexVan

I would never use/recommend using a non OE Porsche oil filter during the warranty period. Not after the warranty, either.

reidry

What he said.

If I could afford or had access to the specialty tools, I'd rebuild the engine too.

Ryan

chuck911

Interesting non-Mahle oil filter story, I tried Fram one time when my usual shop wasn't available. Next couple mornings noticed this knocking sound at idle. Dropped by Squire's to see what he thought. Second Q, did you use a different filter? Bingo, that's your problem!

Ever look and see the spring just inside the filter? Ever wonder what that is? The spring opens a valve under pressure that allows oil flow to bypass the filter at high rpm. Otherwise the filter might blow out. So first lesson, even with a filter not all oil is filtered. The Fram spring was so weak it was opening and closing the bypass, that was the knocking sound, only it was doing this at idle. So second lesson, use another filter, filter even less oil.

The interesting thing here is that manufacturers can legitimately make the claim that their filter is just as good, because yes indeed, the FILTER is just as good! Only the spring is so weak its bypassing all the oil and not hardly ever doing any filtering at all!

todd92

This is repeated ad-naseum, yet in 30 years of selling/trading cars, including 6 BMW's (2M's), 4 MB's, an Audi, a GT-R and A Ferrari, I was never asked for service records once.

MJBird993

To Todd's point, I did once have a Chevy dealer try to lowball me on a trade of my 996 (against a Corvette) because there was no record on the Carfax of the 30K service. I 'splained that I did it myself, but they insisted that the lack of history would affect the value. I ended up selling it privately and the buyer was fine with my explanation.

I suppose that if you were trading in the Porsche to a Porsche dealer and said dealer was going to CPO the car, then they would do any service due that was not documented, so it could be presumed that they might ding you for that cost on trade value.

neil.schneider

I recently traded my cayman in and wasn't asked about a service history. I did run a carfax and t showed the oil changes done by a local guy(not porsche). I have never traded in to a porsche dealer. They seem to want the highest price for their cars and offer low for your car. Just my experience.
My current 911 was bought at a Range Rover dealership.

reidry

I also use Walmart for most of my engine oils and I get my Wix filters from Bennett Auto Supply. For my Spec Miata race car my engine builder, Rossini, recommends Mobil 1 Extended Performance 10w-30 available at Walmart.

If you are really concerned about a service history, you can create your own. Keep a logbook, take pictures during your work, keep all the receipts for materials.

Ryan

CSK 911 C4S

Most Porsche owners won't have to worry about service history because they don't keep their cars long enough to need service.

I like using excel to keep track of everything and even list upcoming services.

https://drive.google.com/file/d/0B8t...it?usp=sharing