mx5cartalk.com

If so would like to know when..........

Thanks guys car model and kms would too

Thanks again

Had split top tank at about 120000km's , It's a 1990 and i happened about 2 years ago

NA8 top tank cracked at 152k 4 years ago . Wishart Radiators (yes, THAT Wishart) in Nth Melbourne charged $80 to replace top tank and pressure clean and test. It's done 45k and 43 track days since then. No worries.

there's a built-in indicator - the colour of the top tank.

it goes from black to brown as it ages and develops tiny cracks.

Yeah watch out when they go brown... Mine went brown - when I took it out it the water was also brown and full of rusted crap. Moral of the story: If your radiator has turned brown get a new one

ah ok so well past the 100 thou kms then

black to brown eh i think mines dark brown

thanks guys trying to contemplate big drive is all

150,000km here, top tank was brown. Radiator was full of gunk so got whole new rad.

Roughly 260,000kms when i purchased the car ('92 na)

Still on its original rad.





I have since replaced it with a 42mm asi unit because i didnt want to risk it breaking on me during a drive somewhere.

And what do ya know?

When i was trying to remove the upper rad hose from the rad.



If its gone brown and your planning a trip, i wouldn't take any chances.