Originally Posted by Jezza

Have been thinking a bit and watching more welds seep coolant slowly...

Also got some info from someone (Ross I think?) that the Toyota coolant is not good for the alum due to it's anti-freeze properties. Something to do with it being a 90-spec-something rather than a 60?

Anyway, I will be getting a new radiator from ASI performance on eBay, they just keep getting cheaper! $170 with free postage I think it was. Throwing some silicone hoses for the TMIC on the order while I'm at it.

Then will be using only Subaru genuine coolant. It only gets dropped once a year or so, so getting it from Subaru (or possibly Covs) won't be that rich/out of my way.

Will also use the earth wire idea suggested, as earthing the motor itself was a great success overall too. Will probably chuck it on one of the radiator fan shroud bolts.