when the heater is off, a valve at the entry to the heater radiator is closed, stopping the flow of coolant into the heater and back to the block. The coolant only flows back to the engine when the heater is on.
Anyone heard of Neo synthetic oils? From what i have heard and read, people who have used redline lightweight shockproof are rate neo as better for smoothing out gearboxes and lasting longer. Here is a thread i found on rexnet http://www.rexnet.com.au/forum/index.php?s...20oils&st=0