991.1 Bore Scoring
#106
Instructor
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Add Item 7.
7. Never drive a Porsche that is not under warranty
Seriously, I have a Ph.D in aerospace/mechanical engineering, am a veteran of the aerospace industry, and have taught mechanical design courses for many years. A street vehicle that requires steps 1 through 6 to avoid catastrophic engine failure in normal daily use represents a badly flawed design. The only way I can rationalize my continuing use of a 991 as a DD is by maintaining warranty coverage.
7. Never drive a Porsche that is not under warranty
Seriously, I have a Ph.D in aerospace/mechanical engineering, am a veteran of the aerospace industry, and have taught mechanical design courses for many years. A street vehicle that requires steps 1 through 6 to avoid catastrophic engine failure in normal daily use represents a badly flawed design. The only way I can rationalize my continuing use of a 991 as a DD is by maintaining warranty coverage.
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Robocop305 (04-19-2021)
#107
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Send me a PM in 7 years when the planned extended Fidelity Platinum warranty on my 2017 991.2S is about to expire and you may have a deal. It's not the maintenance cost that I want to avoid, it's the hassle. My days of playing mechanic, or even indirectly dealing with involved maintenance details, are long over.
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pkalhan (01-06-2023)
#111
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That's good advice for people that can afford it, but we must also realize that there a lot of people that would love to experience a Porsche in spite of the lack of a warranty. I would argue that most of the 986, 987, 996, and 997 crowd in the forums probably bought their cars used without any type of warranty. That's why they come to the forums - to learn how to repair and service these wonderful machines themselves. It's unfortunate, these machines come with so much unforeseen issues that can make a childhood dream turn into your worst nightmare.
My advice is buy what you can afford and know exactly the cost of ownership before you sign on the dotted line. Never go into buying a 911 blindly.
My advice is buy what you can afford and know exactly the cost of ownership before you sign on the dotted line. Never go into buying a 911 blindly.
#112
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I feel like this entire thread is making a mountain out of a mole hill. Bore Scoring as of now is not a major issue on the 991 generation 9A1, and all this speculation is just that, speculation.
This seems obvious, aerospace guys have an extremely low tolerance to risk. Option 7 is rather unrealistic for most people though, and personally not a big deal. Don't buy what you can't afford to fix. My 991.1 is not under warranty, and I prefer it that way, I don't need to worry about the modifications I'm doing to the car killing my warranty.
This seems obvious, aerospace guys have an extremely low tolerance to risk. Option 7 is rather unrealistic for most people though, and personally not a big deal. Don't buy what you can't afford to fix. My 991.1 is not under warranty, and I prefer it that way, I don't need to worry about the modifications I'm doing to the car killing my warranty.
#113
Burning Brakes
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Haven't seen a lot of 991.1 engine rebuild or heavy maintenance Indy's yet. What would this mean for an out of warranty owner in actual dollars? If it's just a bucket could that be replaced? How much?
Assuming 22K miles and zero consumption at that point, what's the likely hood of suddenly developing something like that?
Assuming 22K miles and zero consumption at that point, what's the likely hood of suddenly developing something like that?
#114
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I feel like this entire thread is making a mountain out of a mole hill. Bore Scoring as of now is not a major issue on the 991 generation 9A1, and all this speculation is just that, speculation.
This seems obvious, aerospace guys have an extremely low tolerance to risk. Option 7 is rather unrealistic for most people though, and personally not a big deal. Don't buy what you can't afford to fix. My 991.1 is not under warranty, and I prefer it that way, I don't need to worry about the modifications I'm doing to the car killing my warranty.
This seems obvious, aerospace guys have an extremely low tolerance to risk. Option 7 is rather unrealistic for most people though, and personally not a big deal. Don't buy what you can't afford to fix. My 991.1 is not under warranty, and I prefer it that way, I don't need to worry about the modifications I'm doing to the car killing my warranty.
#116
Instructor
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#117
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FYI, deep in the last century, when discussion turned to Porsche and Alusil, it was in the context of the entire cylinder block cast in Alusil.
Nikasil and Lokasil are cylinder wall coating processes that enable the cylinder block to be cast from normal aluminum (where ‘normal’ means ‘cheapest-possible.’)
Nikasil and Lokasil are cylinder wall coating processes that enable the cylinder block to be cast from normal aluminum (where ‘normal’ means ‘cheapest-possible.’)
#118
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Jeff Burger (01-07-2023)
#119
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I just had Motul 5W40 xcess8100 put in my 14 50th and I am sure it is 100% psychological but the car felt slightly snappier driving home
How often do you guys change oil? 5k miles? 10k or 1 year? I am sure this is like break in with different answers
How often do you guys change oil? 5k miles? 10k or 1 year? I am sure this is like break in with different answers