Questions for those in the know. I have a 2008 G35X sedan, my next service will be 45,000 and about 5-years on the road (yes, somewhat low mileage). I am not hearing any squeaks or squeals but was wondering about changing the drive belts as preventive maintenance. My questions and I appreciate replies:

1. I know it's pretty cheap, but is this a total waste to do now, i.e. they will go 10-years+ 100k+ no problem?

2. If I change is OEM recommended or are there any recommendations for superior brands?

3. Can anyone give me the part numbers for these two belts? I assume it's Nissan and not a special Infiniti part #. I keep finding parts for 03-07 model only and don't know if they changed.

Thanks.

 

for the 07+ g35s there is only ONE drive belt which is recommended to be changed every 30k i believe but if you keep checking its condition for mos it lasts much longer than that, there is a good DIY on this site and the belts range between $30-45, i got my oem one from everythingg35 on sale for $35 a while back but now its $45, just search for the part number (11720-JK20A-V36) and im sure you can find cheaper site.

btw when i changed mine after seeing ppl complaining about their drive belt dieing early, i found my belt to be in great shape even after 50k+

 

I think the manual calls for belt Inspection/change at 60k, but sooner never hurts

 

it depends on which maintaince schedule you follow as per premium its 30k, the reason why ppl were changing out belts sooner was because on some of the 370z the belts would start to shred due to the auto-tensioner acting up causing unexpected belt breakage.

If the tensioner is fine working condition then just keep checking the belt for cracks and stuff and replace when you feel like its run its course, like i said i changed mine over 50k after reading the stories but my old belt was still in great shape.