Originally Posted by
tosh
I’m not sure if I’m honest! I just want to Err on the side of caution as I don’t know what surface temp of things like the inlet and other alloy parts get to that are in contact with the engine block & head,
I guesstimate around 130° but probably way off.
I've used it on ..alternators , thermostat housings ..gearboxes and inlets and never had any with heat damage if that helps mate .