Water filler cap

[v8yes]

Just curious as to which number pressurised water expansion cap everyone is using just done a test and my car blows water out off xpansion tank at 102 degrees my car has a number 13 cap wondering iff spring or seal failing ? Inpu would be useful . Also is anyone using Evans waterless coolant in there ultima yet ?

[v8yes]

Cheers to the both off you for the feed back . I will try a new cap trying to eliminate the easy bits first simplisti is usually best

[v8yes]

Abbosevolution said:

I am running Evans Waterless Coolant although car is not on the road yet, have had no issues so far but engine hasn't been pushed but has been up to temperature in the garage on hot days without issue. Good points so far no issues with removing header cap when hot, bad points are that it feels strange when it leaks and you have to wipe it up, almost sticky, but not and is tad more expensive that water. I'm happy so far, cars running an LS3.

Must agree its odd to mop up so far things are looking good . Car ticks over now without boiling up and temp are a lot lower for some reason . Also seems strange how you can take the radiator cap off with no pressure just need a dry day and a traffic jam

[v8yes]

Hi bog beast just out of interest have you removed your thermostat or modified it to restrict flow slightly cheers

[v8yes]

Hi bog beast just out of interest have you removed your thermostat or modified it to restrict flow slightly cheers