Easy coolant change

[Smokescreen]

My 2008 King Quad has a drain hole at the bottom of the block near the water pump. I take out the bolt and nearly 100% of the coolant comes out. Why can't they make cars/trucks this easy, most have a cheesy valve at the bottom of the rad...not even close to all the coolant...

 

[HTSS_TR]

Most engines have drain holes, but many are at difficult locations to get to. I installed a Preston T-Flush in the heater hose of the LS400, I just open the radiator drain vale and cap and hook up a garden hose to the T-Flush, let water run for 2-3 minutes or until water coming very clear.

I didn't change coolant in the S2000 yet, I don't know where to install the T-Flush. For the E430 I probably by a few feet heater hose to install the T-Flush, remove the hose in the car and using the T-Flush with hose to flush the coolant.