alpine003

Please delete the post above so that I can afford to have a 997 in the near future. I think you just may have increased the resale by 5-10% with that statement.

Now what were you saying was wrong with the 9a1's?

KrazyK

Great info Jake. Could you please provide some details about the M97 IMSB's failures?

Flat6 Innovations

Not the time or place for that.. Don't want to hijack the thread.

WalterRohrl

Jake, am I assuming correctly that you would generally include factory remanufactured M96 engines built after the 997's release date?

Macster

While I agree a 20K mile interval between oil changes is well, stupid, I would not necessarily blame the owner. He may have just been following the factory oil change service schedule.

I have come across some posters on a UK board and factory service intervals are 20K miles for some models and some MY's.

A few years ago in the UK car mags that ran long term test cars, some cars -- Audi comes to mind -- would go the whole test period without an oil change scheduled. 15K every 20K miles was the mileage. And the reviewers would mention this in a favorable tone. OTOH, one car, a Subaru, received negative comments because the factory scheduled a new car oil/filter service at IIRC 3K miles.

Flat6 Innovations

I totally agree.. The M96 was released with a 20K service interval and in the early days as much as 24K was acceptable!

Go back a decade and look at what people said when we told them to change their oil every 5K miles.. They called us stupid! Go back and look at the days before the IMS retrofit was believed to be a black art- they told me it was impossible. To that I say the difficult we do right away, and the impossible;e just takes a little longer.

Now, don't be getting your hopes up on the M97 IMSB engines, fellas. While these engines don't have IMS issues on the street, they have more issues with broken rod bolts and several other modes of failure than all the others, especially scored cylinders. They do have IMSB issues on the track, and nothing helps them.

We have 32 builds on our books now, of those 32, 30 of them are from failures and 20 of those are M97s. Thats right, only two elective builds will carry us through July of 2015 for completions for engine reconstructions.