Its been around 18 months since my Boxter last had a full service including oil change. In that time its done just over 1000 miles.

Oil looks reasonably clean still. Any point in changing it?

Does another stamp in the book (or a missing one) have much impact on value? From a driving perspective if it looks clean and its only done 1000 miles I wouldn’t bother

My 2007 Cayman S has 24 month service intervals. What does the log book say you should do ?

Hmmm..just checked and I’ve actually sone 2300 miles in 18 months

Schedule here

That said looking at that link (which is whats in the manual) it doesn’t stipulate a yearly oil change, rather an engine oil check…

OP the only problems I have had with my car have been from not using it enough, drive it more and if you want peace of mind change the oil.

My car says it’s due an oil change in 13k miles, it’s done 10k since the last one about a year ago. I’ll probably do the oil and filter sometime in the next 1000 miles or so. I know modern synthetic oils are impressive but nonetheless I think extended service intervals are a con to artificially reduce running costs in order to get fleet buyers onboard and are best ignored by private owners, especially at mileages >100k.

To get back on topic though, I don’t think I’d bother changing at 2300 miles, as long as that’s been racked up by a smallish number of decent runs.

The modern Porsche change interval is 20k miles. Not sure I agree with the cynicism around longer oil change intervals. The easy thing for manufactures to do is to stick with the old fashioned rules of an annual oil change, though this has no engineering substance at all behind it. Modern engines, fuels and oils have improved significantly over the last 20 years or so and it would be madness to stick with old rules on oil changes.

Though all engineering based rules on these things assumes a certain level of use, so if you are ‘out of family’, so either a very low usage driver or very high usage driver, you may want to deviate from the standard rules. If I were you I’d talk to a respected Porsche specialist and take some advice from them.

Old Peugeot I had, was told long service intervals was to appeal to the fleet market. Just meant oil needed topping up more often between services and they had an intermediate service anyway that checked it and replaced or topped up. It also meant I was getting brake discs replaced every service! A friend suggested this was due to putting harder pads in to make them last longer but that makes them eat discs.

Main thing is check the oil levels.