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Review on Antifreeze Coolant Refractometer Automobile Windshield by Stephen Thomas

Revainrating 3 out of 5

Check the calibration before using it.

I mainly use this for DEF. As with all modern diesel engines, this is where most of the problems arise. The first trucks I used it on showed 35% DEF. Which is a bit too high. So I checked the calibration and I'm sure. It has not been reset. Next to. It works as described. But then again I only used it for DEF.

Pros
  • Check, measure and check
Cons
  • Not sure