好奇

要看手册吧，我的翼豹手册里写得很详细。目前保养3次：1500km, 6000km, 10000km. 4s保养换机油后，会贴个标签，说下次什么时间换。

保养时间短和空气关系不大，过滤过的空气差别不大的。主要是汽油的含硫量。

看过文献大概是说含硫高的尾气偏酸且有腐蚀性，让机油折寿。

主要是看燃油中硫含量的高低和空气中颗粒物含量的高低

别的车我不知道，我的Nissan 是9000英里（14400公里），保养的（或者12个月，看哪个先到）。还看到Nissan Note 是12000英里（19200公里）。4s店和维护手册是执行同一个标准。我不明白为什么国内汽车店和说明书的说法不一样？
查了丰田，是10000英里（16000公里），或者12个月。

说明书上建议每5000英里左右更换一次机油。
国外油品质量较高，空气清洁，对发动机损伤小，路况也比国内要好。

普通机油3000mi换一次，全合成的（俺用美孚1号，22刀一桶5qt）6000mi换一次。

这是网上找的一个网友的维护记录，nissan maxima

Date Miles Description
4.11.09 91,977 Machined front rotors
3.08.09 90,325 Rotated tires
2.01.09 89,125 Flushed coolant
1.25.09 88,765 Changed oil and transmission fluid
1.18.09 88,578 Changed air filter
9.14.08 83,624 Rotated Tires
8.03.08 82,162 Changed Oil and cleaned HEPA filter
3.02.08 77,140 Full detail. Clayed and Klasse'd  
2.17.08 76,857 Rotated Tires
1.26.08 76,250 Changed Oil
9.29.07 72,000 Rotated Tires
8.11.07 69,575 Changed Oil and fuel filter
7.29.07 69,250 Installed new battery
7.17.07 68,850 Installed Yokohama 225/50/17 Avid V4S tires. Got alignment.

1.28.07 65,122 Changed air filter and oil. Replaced 1 flat Avon tire & wipers.
1.24.07 65,185 Replaced bad coil in cylinder #4. Rotated tires.
11.18.06 64,423 Installed new NGK PLFR5A-11 Platinum Spark Plugs
10.21.06 63,320 Changed transmission fluid (MT-90) & power steering fluid
10.8.06 62,500 Installed Brembo blank rotors, Hawk HPS pads. Bled Brakes
9.20.06 62,150 Alignment, rotated tires, changed oil
7.2.06 59,650 Changed oil, Klasse'd, rotated tires
4.16.06 56,765 Flushed coolant
1.16.06 54,590 Clayed/Klasse'd & detailed interior
12.30.05 53,850 Changed oil and rotated tires
8.12.05 48,920 Installed Avon Tech M550 225/50/ZR17
7.23.05 48,188 Changed oil and air filter.
4.25.05 44,550 Clayed/Klasse'd & rotated tires
3.19.05 43,450 Changed oil
10.31.04 39,760 Installed H&R springs front, OEM back. Reinstalled stock struts all around.  
9.19.04 38,470 Rotated Tires
4.17.04 34,324 Changed oil
4.7.04 33,915 Installed E-brake boot
3.12.04 33,275 Rewired fogs
2.28.04 33,240 Four wheel alignment
2.28.04 33,240 Rotated Tires
2.28.04 33,240 Installed Tokico Illumina struts and Progress Springs
2.17.04 32,445 Installed clear front sidemarkers
2.15.04 32,420 Installed Umnitza DDE Lightning
1.24.04 31,600 Cleaned Cabin Microfilter
1.10.04 31,250 Installed Redline MT-90
12.27.03 30,459 Applied Clay Magic, Klasse AIO and Pinnacle Paste Glaz
12.27.03 30,459 Installed Polarg M-4 Clearance
12.26.03 30,450 Installed PIAA Fogs
11.24.03 30,259 Installed Chrome Gauge Rings
11.11.03 29,941 Installed Clear Bra
11.09.03 29,920 Switched to Mobil 1 SuperSyn 5w30
10.21.03 28,800 Purchased

早讨论过是5K一保还是1W一保了。

加拿大有6000公里的

差不多3000mile一次

多少公里主要看用车环境，路况油品空气质量不同地区差异太大。

5000英哩.