Overheard a guy at the supply house say he never checks his coolant concentration with a refractometer, just goes by color

3 comments

3 Comments

Wait, is that actually a common thing people do? I used to figure color was good enough too, but after seeing how bad some of that "green" stuff can get in the wrong system, I started using a refractometer and it totally changed my mind. Now I'd rather spend a few seconds checking than risk messing up a whole system.

shane2442mo ago

Guess he's never seen a jug of green Prestone.

parkermorgan1mo ago

Actually saw some green stuff at the parts store last week. It's just not as common around here anymore.