High oil consumption after break-in
09-10-2001 | 12:21 PM
#16
Rennlist Member
Joined: Sep 2001
Posts: 892
Likes: 33
From: Mount Laurel NJ
More on 996TT oil consumption: I just spoke with Tom Deitsch at Flemington Porsche, who told me that the factory has not changed its oil recommendation on the Twin Turbos. They did, however, change the regular Carreras to 0 weight Mobil 1.
There are apparently some 996TT's which are consuming more than a quart of oil every 500 miles, but Porsche is saying that the engine design coupled with the use of synthetics, is leading to these consumption levels.
The tech continued on to say that these engines need plenty of run-in miles (excess of 10,000) and that running them hard will aid in getting the rings seated properly, which bears out what Steve Weiner has recommended here.
There are apparently some 996TT's which are consuming more than a quart of oil every 500 miles, but Porsche is saying that the engine design coupled with the use of synthetics, is leading to these consumption levels.
The tech continued on to say that these engines need plenty of run-in miles (excess of 10,000) and that running them hard will aid in getting the rings seated properly, which bears out what Steve Weiner has recommended here.
09-10-2001 | 09:31 PM
#17
RL Technical Advisor
Joined: May 2001
Posts: 11,871
Likes: 67
From: Portland Oregon
Hi Ron:
I would wholehearedly agree with your Tech's advice and that of Porsche in this regard.
Using a high-quality synthetic can delay the ring seating process beyond what many consider "normal". I would not be surprised to see that oil consumption may not stabilize until 10K miles or more. The thin oils that everyone is so fond of these days for lowest internal drag and fuel economy, will increase oil consumption, all things being equal.
Although I can fully appreciate the risk to one's driver's license, following the ring seating and break-in procedures that I outlined in an earlier post, will really help accelerate this process.
Put that boost to good use,......
I would wholehearedly agree with your Tech's advice and that of Porsche in this regard.
Using a high-quality synthetic can delay the ring seating process beyond what many consider "normal". I would not be surprised to see that oil consumption may not stabilize until 10K miles or more. The thin oils that everyone is so fond of these days for lowest internal drag and fuel economy, will increase oil consumption, all things being equal.
Although I can fully appreciate the risk to one's driver's license, following the ring seating and break-in procedures that I outlined in an earlier post, will really help accelerate this process.
Put that boost to good use,......
09-10-2001 | 11:26 PM
#18
Rennlist Member
Joined: Sep 2001
Posts: 892
Likes: 33
From: Mount Laurel NJ
Thanks Steve. I did perform your recommended run-in procedure yesterday and will report results after some more miles.
And yes, the danger to my driver's license was real. I recall the looks on the faces of the folks in the Neon as they passed me while I poked along at 45 MPH, then blew by them at 120! Then multiply their disbelief as this process repeated a few times. I think they were contemplating calling the Pennsylvania State Police to turn me in!
And yes, the danger to my driver's license was real. I recall the looks on the faces of the folks in the Neon as they passed me while I poked along at 45 MPH, then blew by them at 120! Then multiply their disbelief as this process repeated a few times. I think they were contemplating calling the Pennsylvania State Police to turn me in!
Originally posted by Steve Weiner-Rennsport Systems:
<STRONG>Hi Ron:
I would wholehearedly agree with your Tech's advice and that of Porsche in this regard.
Using a high-quality synthetic can delay the ring seating process beyond what many consider "normal". I would not be surprised to see that oil consumption may not stabilize until 10K miles or more. The thin oils that everyone is so fond of these days for lowest internal drag and fuel economy, will increase oil consumption, all things being equal.
Although I can fully appreciate the risk to one's driver's license, following the ring seating and break-in procedures that I outlined in an earlier post, will really help accelerate this process.
Put that boost to good use,......</STRONG>
<STRONG>Hi Ron:
I would wholehearedly agree with your Tech's advice and that of Porsche in this regard.
Using a high-quality synthetic can delay the ring seating process beyond what many consider "normal". I would not be surprised to see that oil consumption may not stabilize until 10K miles or more. The thin oils that everyone is so fond of these days for lowest internal drag and fuel economy, will increase oil consumption, all things being equal.
Although I can fully appreciate the risk to one's driver's license, following the ring seating and break-in procedures that I outlined in an earlier post, will really help accelerate this process.
Put that boost to good use,......
</STRONG>
09-12-2001 | 09:59 PM
#20
Pro
Joined: Jun 2001
Posts: 629
Likes: 1
From: Seattle, WA, USA
I thought I'd post an update on this topic. At 1,800 miles, I'm using about a quart of oil every 800 miles. I've observed the factory recomended RPM guidelines (mostly), but am liberal in my use of Steve's break-in techniques as discussed earlier. I have also only seen the 'big blue puff' on startup 2 or 3 times, usually only the morning after I only back it out, wash it, and put it away.
Robin
Robin
