Thread: Cooling system flush

Originally Posted by Blknight.aus

ladas, if your living somewhere where the temp regulalry gets sub zero thats actually the right thing to do.

exposure to cold (negative temps) shortens the life of some coolants and can increase the formation of silicate crud in the radiator.

another tick for OAT coolant. No silicates to drop out of suspension.

i just bought a DiscoI, Tdi where the heater core had ben bypassed. I had a look in the radiator and he coolant was brown and rusty. I flued it immediately using Nulon Radiator flush for around 1 hour only. The muck that came out was scarey!. However, after 1 week and a few hundred k's, the new coolant is still green and that's reassuring.