Re: Backflushing coolant
Best thing to do is to blow $20 and get a Haynes/Chilton auto repair manual. It'll tell you in depth how to flush the cooling system. I've always backflushed my heater cores on my vehicles before every second winter for maximum performance. I've never backflushed an engine as I can't see the need.
'00 Durango R/T 360ci 290hp (modded); 138,500m
'06 Pontiac G6 GT 3.5L 220hp; 44,000m
'12 Chrysler 200 Limited 3.6L 283hp; 13,000m
'99 Taurus 3.0L 2V Vulcan 145hp; 154,300m - Traded
Amsoil in all vehicles!