DB9 V12 oil starvation, real problem or not?
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I made an assumption that the DB9 VIN integer sequence would reset each model year like all my American cars do.
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That's what XJRS meant..even american cars ..2000 camaro and 2002 carmaro VIN's will not reset... 2002 Camaro and the new Camaro VIN's will have been reset at the start of the new model recontruct..or if volumes sold more than 999999..then the reset would occur to sometiming like A99999
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American car VINs do not reset. That would be chaos. VINs do not reset...go ask your DMV
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For example, the first 1953 corvette was built with a VIN that ended in 001 and ran through 300 (they built 300 cars).
The first 1954 corvette was built, again with a VIN ending in 001. They built several thousand 1954 vettes so the first 300 1954 corvettes had the same Integer sequence (001-300) on the end of the VIN as the first 300 53 corvettes did. However the prefix of the 54 was different than the 53. Chevrolet changed the prefix of the VIN each year.
A 1962 corvette would have a VIN such as 20867S110100, and a 1961 corvette could have a VIN 10867S110100, and a 1960 vette - 00867S110110, and so on.
I don't know when GM stopped doing that for American cars. But it is what made me wonder about the DB9.
From what I can tell, even my 07 Vette has a 6 digit Integer VIN sequence that resets each year starting with 100001. Certainly my research supports that, and there are 2008 vettes with lower VIN sequences than my 07, although each car has a year-specific identifier in the 10th digit of the VIN.
Last edited by 62Jeff; Jan 11, 2012 at 05:04 PM.
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No not the entire VIN, the Integer sequential number.
For example, the first 1953 corvette was built with a VIN that ended in 001 and ran through 300 (they built 300 cars).
The first 1954 corvette was built, again with a VIN ending in 001. They built several thousand 1954 vettes so the first 300 1954 corvettes had the same Integer sequence (001-300) on the end of the VIN as the first 300 53 corvettes did. However the prefix of the 54 was different than the 53. Chevrolet changed the prefix of the VIN each year.
A 1962 corvette would have a VIN such as 20867S110100, and a 1961 corvette could have a VIN 10867S110100, and a 1960 vette - 00867S110110, and so on.
I don't know when GM stopped doing that for American cars. But it is what made me wonder about the DB9.
From what I can tell, even my 07 Vette has a 6 digit Integer VIN sequence that resets each year starting with 100001. Certainly my research supports that, and there are 2008 vettes with lower VIN sequences than my 07, although each car has a year-specific identifier in the 10th digit of the VIN.
For example, the first 1953 corvette was built with a VIN that ended in 001 and ran through 300 (they built 300 cars).
The first 1954 corvette was built, again with a VIN ending in 001. They built several thousand 1954 vettes so the first 300 1954 corvettes had the same Integer sequence (001-300) on the end of the VIN as the first 300 53 corvettes did. However the prefix of the 54 was different than the 53. Chevrolet changed the prefix of the VIN each year.
A 1962 corvette would have a VIN such as 20867S110100, and a 1961 corvette could have a VIN 10867S110100, and a 1960 vette - 00867S110110, and so on.
I don't know when GM stopped doing that for American cars. But it is what made me wonder about the DB9.
From what I can tell, even my 07 Vette has a 6 digit Integer VIN sequence that resets each year starting with 100001. Certainly my research supports that, and there are 2008 vettes with lower VIN sequences than my 07, although each car has a year-specific identifier in the 10th digit of the VIN.
I can guarantee you are wrong about your vette. Different models start with a new 6-digit sequence (e.g. Z06 vs regular C6) but they certainly do not reset the 6-digit number by model year.
When you call a dealer and he asks for your VIN, he doesn't need to know what year the car is. The 6-digits tells him all he needs to know. Call your Chevy dealer...
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Last 6 digits are a production sequence and are not reset by production or model year. Here ya go, from 49 CFR 565.15:
"3) The third through the eighth characters of the fourth section (positions 12 through 17) shall represent the number sequentially assigned by the manufacturer in the production process if the manufacturer is a high-volume manufacturer. If a manufacturer is a low-volume manufacturer, the third, fourth, and fifth characters of the fourth section (positions 12, 13, and 14), combined with the three characters of the first section (positions 1, 2, and 3), shall uniquely identify the manufacturer and type of the motor vehicle and the sixth, seventh, and eighth characters of the fourth section (positions 15, 16, and 17) shall represent the number sequentially assigned by the manufacturer in the production process."
"3) The third through the eighth characters of the fourth section (positions 12 through 17) shall represent the number sequentially assigned by the manufacturer in the production process if the manufacturer is a high-volume manufacturer. If a manufacturer is a low-volume manufacturer, the third, fourth, and fifth characters of the fourth section (positions 12, 13, and 14), combined with the three characters of the first section (positions 1, 2, and 3), shall uniquely identify the manufacturer and type of the motor vehicle and the sixth, seventh, and eighth characters of the fourth section (positions 15, 16, and 17) shall represent the number sequentially assigned by the manufacturer in the production process."
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I agree! Have only had my 07 Db9 for a month and really appreciate the wealth of information available here!
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This is a problem for people who do not check their oil or who do not change it when it is needed. Mine is a 2005 and has also had the dipstick recall. Since this is such a small pool of cars I think some owners just don't check there oil on a regular basis and when something goes wrong we all hear about it. Mine has been dead reliable for the year or so I have had it. Just make sure the dipstick and transmission cooler update have been done.
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Do I have the only DB9 that doesn't appear to be using oil? I also check mine every time I take the car out. I have just a tad over 3k miles on this oil and its still plum full. How many miles are some of you guys going in between oil changes? Just curious..
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The oil isn't being consumed because it is leaking past piston rings, it is flowing into the TBs and collecting there and making quite a mess of the air filters.
There are lots of photos of this 'problem' on the AM forum on Piston Heads.