I just got my Flat Six 3.6L Boxster back from Jake and the boys in Cleveland, GA. It has DT40 in it now, of course, and that's all I'll use on the street. XP9, of course, for the track. I know as much about oil as the rest of you guys (which is to say, not that much really). I'm betting it's like anything -- if you're an expert in it, a professional, you kind of chuckle at the stuff people say based on internet info. I do in my job (commodity trader), whenever I hear someone talking about the price of oil or gold or corn. I just chuckle, because they clearly have no idea what they're talking about, but they sound like they do to everyone else. On the other hand, Jake Raby is a pro and knows what he's talking about. You can ignore it, of course, or demand data to analyze -- if you're a lubricant engineer -- but that's all foolishness. Just like most oil threads, foolishness. People who don't know much arguing over the stuff they don't know.

 

^^^ threesome? Pm KK

As per your logic, I guess Porsche is not an expert then?

 

I also have a few cases for sale up here in Toronto - local pickup

 

So I swapped over to DT40 this weekend and I have to say the motor sounded significantly quieter with both the BR30 in it and now the DT40. My father is has been a mechanic for years and restores cars as a hobby but has no idea about the "magic" of DT40 also commented on how much quieter the motor sounded since he had the car at his house all winter, and this was an unsolicited opinion.

So take it as you may, but that is just my $.02

 

How long (how far) did you run the BR30 (flush)? Thanks.

 

As per the recommendation of Joe Gibbs I just let the motor warm up and drove it around the blocks a few times to get the oil circulated and went for the DT 40.

I know Jake recommends driving up to 100 miles on the BR 30, but you have to make sure you take it easy. As I had to take the car back to my place on a 2 hour drive on the highways I knew I wasn't going to be able to keep the revs low so I opted to get the DT 40 in before the trip home.

 

I didnt do a BR30 break in period. Went straight from M1 to DT40 after the car was driven all day.

 

Thank you.

That's what I did. I didn't know about the BR30 flush. Oh well, doing an early oil change again at about the 2,500 mile mark. No sweat.

 

Someone please clarify. As I think I read previously, The break in flush is to get an accurate OA with the DT40. Other than that it's not necessary. Is that correct? In other words the flush isn't needed unless I'm going to do an oil analysis.

 

Dt40 in my car all winter during storage. When I started it up there was no lifter clacking even though it had sat for 5 months untouched. !

Wow. You usually get some of this after long sitting periods. Too bad we can't use it on the track

Thinking of using amsoil dominator 15-w50 for hot track days; draining it and use dt 40 for daily usage.

 

You can read more about the oil, how it was formulated and why, as written by the man himself Jake Raby. He formulated the oil specifically for the M96 engine and apparently got it right. If more 996 owners would have taken the time to read what he and other experts say about the need for a high zinc, higher viscosity oil, and more frequent oil changes for the M96 engine, there wouldn't have been an IMSB crisis in the first place.

 

 

IMS bearing failure and oil change type/frequency are completely unrelated issues.

 

Read what the experts say about the issue and you will see the exact opposite of your statement is true. To prevent IMSB issues, they recommend higher viscosity oil, high zinc content, more frequent oil change interval of 3K to 5K. You can find the same articles if you look.

 

I'd guess Porsche has oil experts in their employ who know a lot. And they have accountants who know things, too. In the end, they stick a Mobil-1 sticker on their car for whatever reason moves them. They also recommend only Porsche-branded parts for their cars, which I have found on several occasions not to be good advice. And, they're the very same people who brought you 12 glorious years of the intermediate shaft bearing.

YMMV.