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Coupes & Convertibles Porsche 911 Porsche 911
2048 messages, Last post on Aug 31, 2009 at 9:15 AM
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Replying to: 911nut (May 07, 2008 7:53 pm) If it wasn't a TYPO and you are using a quart every 300 miles, you have a serious problem that may require a new short block.
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Replying to: Mr_Shiftright (May 07, 2008 9:43 pm) |
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Replying to: 911nut (May 07, 2008 7:53 pm)
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Replying to: bsissi (May 08, 2008 3:53 pm) Any consumption under 1 qt per 1,000 miles is alarming IMO. |
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Replying to: habitat1 (May 07, 2008 2:18 am) To change the subject, there has been a lot of talk about oil leaks due to possibly not breaking in the car properly. This seems to be more with the 996's and earlier. I don't remember reading about any 997's with this problem. I have a cabinet shop in my garage and have to park my 997 outside in order to work which is probably 4 to 5 times a week. Engine on about 30 seconds. The car has 13,800 miles and let's assume it was broken in properly. We usually go for a one or two hour drive on a Sat. or Sun. with a lot of freeway driving at 60 to 80 mph. Don't drive it during the week. I'm assuming that having the engine on for just 30 seconds is better than driving it for 5 to 10 mins. Just like not turning the engine on at all, right? Or, does it matter at all, assuming that the car was broken in properly. This stuff about the problems not showing up until 45 or 50,000 is scary. And, these guys that are having so much oil consumption on cars that costs over $70,000 is just unbelievable. Any thoughts?
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Replying to: buylow (May 08, 2008 8:41 pm) The lesson I was given by my dealer on break in was simple. Don't turn the key unless you are going to drive the car for 15-20 minutes - i.e. until the oild temperature (not just water temp) gets to full operating level, and then keep it there for another 5+ minutes. This gives the seals, gaskets, rings and all engine parts the opportunity to full expand and contract during the break in period. I have 19.2k miles on my 2005 and just added my first 3/4 quart of oil since it was changed at 13k miles. I do think the 997 model addressed most (but perhaps not all) RMS leak design issues, but there were reports on RennTech of at least 1-2 owners that had RMS leaks on 997 models. Don't recall the circumstances.
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Replying to: habitat1 (May 09, 2008 9:54 am)
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Replying to: buylow (May 09, 2008 6:53 pm) 20,000 miles or 2 years between oil changes does sound like a long time, but the engine holds 9+ quarts and the oil filter is a large $40+ filter. And everyone from Porsche that I talked to said that this was a specific design feature/intent of the 997 model - i.e. reduced maintenance intervals. |
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The information exchange on this forum is very valuable. It gives someone like me a heads up on what to expect in the future as well as possible solutions. I guess my porsche is ready for an oil change - two years old. I don't know the in service date - in fact I do. I think on the trip computer under continuous, it shows the beginning date. I thought the information under continuous was valuable. You get an idea how the previous owner drove the car (in my case only one previous owner). My mpg was 16.1, and the average speed was, I think, around 30 miles when I purchased the car. Since I get 14mpg in town and 26+ on the freeway in 6th gear going 70 mph, I would conclude that the car had a balance of freeway and highway time. I always thought that the faster you go over 50 mpg really eats up the gas. However, because of the 6th gear (overdrive), the increased consumption from 65 to 80 mpg is very small - the rpm hangs around 3000. The trip computer dramatically shows you how stop and go can eat up the gas (obvious, but you see it very graphically on the computer). I have to shut it off when I'm in town.
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Replying to: buylow (May 10, 2008 8:11 am) If you didn't get that, ask for it. My selling dealership provides it up front on all CPO cars.
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