Cool ruining thermostat nova gte?

[gte-87]

Hi. Does any one know if you can get a cool running thermostat for 1.6 gte thanks dan

[craig green]

No & why would you want to. A cool running stat can often keep the engine from switching to the hot running map which means you get poor economy as well as bore wash & excessive engine wear. The std item is fine, especially in Buckinghamshire/UK.

Years ago people used to drill a small hole in the stat diaphragm, or leave it out altogether.

[meritlover]

if your cooling system is struggling to dissipate heat to 89deg then it will struggle to drop it lower than that with a cooler thermostat.

[mowgli]

if you must, you can fit the one from the astra 1.6 diesel, but get your cooling system flushed out properly & fit a new std stat first.

[GRUNT 16V]

Dont bother waste of time and money stick with your std stat

[craig green]

It all just points at a problem elsewhere.
Blocked heater matrix or knackered radiator.

[gte-87]

Ok cool thanks for help

[Stuart]

We don't even know why he's asked about one....

Regardless, engines are supposed to be a bit hot so a cool stat just drops it outside of its efficiency window