Radiator Flush

[MySV6]

Is it a big deal doing a radiator flush (And refill with proper coolant) on a VT? Whats the best way to go about it?

I assume cold engine, open radiator cap, drop the bottom hose off the radiator or engine (Which is easier?), let drain, ane maybe flush with a hose. Then refill with coolant, and fill with water.

What about the overflow tank - should that be washed out & filled with water or water/coolant mix?

Dave

[B J]

overflow tank should be filled with the same coolant mix. Holden/eagers also give you sawdust tablets to crush up and add to the system. Apparently maintains the seal in & prolongs your water pump.

[DJ Majah]

Most mechanics discount the usefulness of the coolant pills on ecotecs as just being more cash for the dealer. They were originally for the old Buick engines.