I've been leaving my coolant concentration way too low for months

Kept getting a weird finish on 6061 aluminum parts and finally checked the mix with a refractometer. Turns out I was running at like 3% instead of the 8% the manual says. Anyone else have a simple trick for keeping the mix right without checking it all the time?

2 comments

2 Comments

reeses417d ago

Oh man, that'll do it! I just mark my coolant tank at the fill line for the right mix, so I always add the right amount.

holly_jones7d ago

Mark your coolant tank? That's actually genius.