1:13 time stamp: The tester noted that the fluid should be level with horizontal line at top of the tester, but you didn't (actual fluid level was all the way to top top of the tester). So, are you saying it doesn't matter if you follow the instruction on the tester?

It means that you have plenty coolant to protect your car in cold weather. The higher the coolant to water ratio, the more protection you will have. In this case you may have more than 50/50 mix.

after you suck out coolant from resevoir, is it ok to pour it back? dirt or little particles from the tester will be filtered out so it's ok to pour it back?

Those specs -34°fto 265°f is an average 50/50 mix not the maximum protection of 70% anti freeze to 30% distilled water mix or higher because the temp ratings are better in the negative & possitve side of -74f to 276°f.

Question: the device demonstrated won’t properly read RV water system antifreeze will it? It’s non-toxic and ethanol and/or propylene glycol, not ethylene glycol?

why didn't show where the arrow is on both sides if it is not protected? Explain where the engine is NOT protected. People with any knowledge check this stuff and the video isn't helping them

Just checked my coolant in my 2008 ford focus the arrow was pointing above the -43 it was stuck on the freeze point word. What does that mean thank you

I tested mine, the arrow is all the way up on the freeze point... Is that good or bad?

it means you shouldn't rely on youtube comments for the well being of your 2008 focus. I recommend selling it and buying a bicycle

Srbija