I have a 2000 infiniti i30. 200k miles. when do i replace the transmission?

NEcars wrote:I have a 2000 infiniti i30. 200k miles. when do i replace the transmission?

Most people replace/rebuild their transmission every 26.4k miles I do atleast..

NEcars wrote:I have a 2000 infiniti i30. 200k miles. when do i replace the transmission?

Well unless it's having issues, you don't replace it until it quits working. They're no replacement interval for a transmission, I have the same year I30 with 145k miles on it and it still does just fine. I also had a Maxima before it with 225k on it and the transmission was still like new in it, so unless it's slipping really bad or not working at all, keep driving it until it does

I have a 99 I30 with 250,000 miles and the automatic transmission is going strong. I believe the transmission will last until at least 310,000 miles or more.

However, when I first bought it a couple of months ago, the transmission fluid had not been changed in a while.. The fluid was dark and way over due for a change. The transmission had a strange shuttering feel after it shifted. I thought -- well here come the transmission troubles.

So I did some research and found some years Nissan (et al) and Castrol participated in developing an ATF spec named JASO M315-1998, now called JASO-1A for antishudder durability for comfortable gear changes without noise, vibration or harshness. I do know that Mobil1 and Castrol Import Multi-vehicle ATF meet or exceed the JASO-1A spec.

So I changed the automatic transmission fluid to Castrol Import Multi-vehicle ATF and the problems cleared up and today is shifts perfectly. It is no secret that keeping ATF changed is a good investment for a long running transmission. I like to change the ATF every 15,000 miles or once a year. I can get Cartrol IMV for $4.49 a quart. ATF changes for an I30 or Maxima is a relativey easy DIY operation that I do my driveway.

Yes, regular OCI and fluid change will extend the life of the car. I change all fluids every 2 years and so far, all cars are running great.