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DEF Refractometer

1K views 2 replies 3 participants last post by  07C6Z06 
#1 ·
Has anyone bought a DEF refractometer to check new DEF before adding? I just purchased one from OTC on Amazon for about $65. I'll keep the test results, along with date of purchase and mfg. for DEF in case I experience a failure and dealer questions quality of fluid I've added.

Also, it might actually prevent an actual problem.
 
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