recomended radiator pressure cap??

[suprafreak123]

Hi Everyone,
What is the recommended pressure on a radiator cap?I bought a cap and a new stock radiator. The cap rating is for 18psi.Do you guys think that too high?

 

[7M4EVR]

No idea, but the stock one is 13.

 

[jetjock]

Too high. As pointed out stock is .9 bar

 

[suprafreak123]

Cool, thanks ill be returning this one back.