Did you guys change man. trans oil at 30k?
07-22-2010, 08:28 AM
#2
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No, it's not even recommended in the service manual. It's not supposed to be done until 40-45k miles. However, my car (06) had 38k miles on it when I changed it because of gears grinding. Also my fluids were 4 years old at the time of last week.
07-22-2010, 08:35 AM
#3
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I guess I'll do it now. Should I do a drain or a complete flush?
The dealer gave me only 6 qts, will that be enough for a drain. How much more is needed for a flush?
Last edited by codek; 07-22-2010 at 08:46 AM. Reason: spelling
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07-22-2010, 11:07 AM
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Ok I have a question after reading the link with the scheduled maintenance. I use the schedule 2. It says change the oil for the diff and tranny every 30k miles if you are in severe use, however I would like to follow schedule 2 for the diff and tranny oil... So would 60k be the ideal time (or how many months), and what is nissans recommended change for the rear diff and tranny?
07-22-2010, 11:52 AM
#11
Ok I have a question after reading the link with the scheduled maintenance. I use the schedule 2. It says change the oil for the diff and tranny every 30k miles if you are in severe use, however I would like to follow schedule 2 for the diff and tranny oil... So would 60k be the ideal time (or how many months), and what is nissans recommended change for the rear diff and tranny?
110 degree temperatures in Arizona severe.
Also -20 degrees in North Dakota.
Short trips where the engine does NOT reach operating temperature is also severe.
07-22-2010, 04:05 PM
#13
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2007 Service and maintenance guide.
also found here
http://www.350zmotoring.com/forums/350Z_Maintenance.php
also found here
http://www.350zmotoring.com/forums/350Z_Maintenance.php
Last edited by codek; 07-22-2010 at 04:26 PM.
07-22-2010, 04:54 PM
#14
The problem is that's the same guide that's on the Nissan site. It's generic, covering all vehicles. Only the "Premium" service suggests changing it, along with a lot of other stuff. Premium as in it will cost you a premium price if you follow their recommendations. The two "normal" maintenance intervals (S1, S2) are the ones provided with the Maintenance Manual that comes with the Z as well as the Factory Service Manual. It's more about marketing than what is required to properly maintain any car.
That being said, most of us are obsessive about are Zs and do tend to "over do it" some. The main reason I changed mine at 25K was to try and alleviate the hard, notchy shifting issue. Going to Royal Purple made it worse than before in cold weather. Switching to Redline hasn't been any better. The only real reason to justify changing it is to go synthetic for the bump in gas mileage.
That being said, most of us are obsessive about are Zs and do tend to "over do it" some. The main reason I changed mine at 25K was to try and alleviate the hard, notchy shifting issue. Going to Royal Purple made it worse than before in cold weather. Switching to Redline hasn't been any better. The only real reason to justify changing it is to go synthetic for the bump in gas mileage.
07-22-2010, 05:50 PM
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The problem is that's the same guide that's on the Nissan site. It's generic, covering all vehicles. Only the "Premium" service suggests changing it, along with a lot of other stuff. Premium as in it will cost you a premium price if you follow their recommendations. The two "normal" maintenance intervals (S1, S2) are the ones provided with the Maintenance Manual that comes with the Z as well as the Factory Service Manual. It's more about marketing than what is required to properly maintain any car.
That being said, most of us are obsessive about are Zs and do tend to "over do it" some. The main reason I changed mine at 25K was to try and alleviate the hard, notchy shifting issue. Going to Royal Purple made it worse than before in cold weather. Switching to Redline hasn't been any better. The only real reason to justify changing it is to go synthetic for the bump in gas mileage.
That being said, most of us are obsessive about are Zs and do tend to "over do it" some. The main reason I changed mine at 25K was to try and alleviate the hard, notchy shifting issue. Going to Royal Purple made it worse than before in cold weather. Switching to Redline hasn't been any better. The only real reason to justify changing it is to go synthetic for the bump in gas mileage.
Do I need to do a flush? Some people were against flushes and said they might ruin the car. And I don't want to do a flush anyway.
07-22-2010, 06:38 PM
#16
I gained about 2mpg. When I went from the stock 18" wheels to the much wider 19" ones, my highway mileage dropped about 3mpg. The switch to synthetic got 2mpg back.
No need to flush - open the top plug then open the bottom and leave it drain for 30 minutes and it will be virtually empty.
No need to flush - open the top plug then open the bottom and leave it drain for 30 minutes and it will be virtually empty.
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