About to place an order from $or for some parts and ran across this thing. First thought, was Cool! allows you to see color of coolant and it filters all the crap out of the block at the same time. Then my pessimist side kicked in and said, Hmmmm nothing like being out in the boonies and a freak rock or stick breaks it and there you sit with no coolant in the engine.... A quick search turned up a couple of alternatives that are stronger but are not see thru. Thoughts?