Just a quick note of thanks to all those on this sub-forum that sing the praises of the Lisle funnel. I finally got one based on many positive comments I have read here and used it for my coolant change a few days ago. The tool works as flawlessly as everyone has stated for the burping process without spilling nary a drop or having to monitor as closely! Much better approach than my large funnel surrounded by scrap rags and paper towels for sure around the neck! It makes you almost look forward to changing the coolant again - OK, well maybe that's a bit excessive! One thing I learned that is probably obvious to those that have used it, is to not fill up the reservoir until you are done with the funnel but rather use the excess in the funnel to then place into the reservoir. However... I put the remainder from the funnel in a container and ended up having to replenish the reservoir after the heat cycle completed so it still worked out - I just had to store it.