As the title says is it really necassary to change the coolant at 30k. I'm replacing my differential and transmission oil over the weekend and wanted to know if I can go bit longer w/o changing the coolant. I didn't need to change coolant on my other cars for around 60k miles. Any help is appreciated.

Thanks

 

nissan says 30k. but how does it look? what color? clean?

 

use heavy duty (extended duty)coolant.

 

I would go ahead and change it according to the service guide

 

I agree, inspect the coolant first, and decide from there.

 

i agree with the comments above. If your coolant is still good color and not cloudy then i wouldn't worry about it. But once you do change the fluid make sure not to hook any sort of flusher machine onto your car. Simply drain the fluid and replace, dont flush.

 

I checked the color of the coolant and it did look a little cloudy and I'll be changing it tommorow. Thanks for the replies.