![](/content/chevron-lubricants/en_me/home/landing-page/how-to-series/using-a-coolant-refractometer/_jcr_content/parsys/adaptive_image_copy_2042998356_copy_copy.img.png)
![](/content/dam/external/caltex/mea/icons/lightbulb-icon.png)
HOW TO SERIES
![Using a coolant refractometer to measure coolant system dilution](/content/chevron-lubricants/en_me/home/landing-page/how-to-series/using-a-coolant-refractometer/_jcr_content/parsys/adaptive_image_copy_2042998356_copy_copy_495117584.img.png)
![Using a coolant refractometer to measure coolant system dilution](/content/dam/external/caltex/mea/banners/how-to-series-header.png)
A coolant refractometer is used to measure the freeze point of ethylene or propylene glycol based coolants including Delo® XLC. Download the factsheet to know about:
Download the factsheet to learn more about coolant refractometers.
![Using a Coolant Refractometer to measure coolant system dilution](/content/chevron-lubricants/en_me/home/landing-page/how-to-series/using-a-coolant-refractometer/_jcr_content/parsys/multi_column_1552881496_copy_copy/parsys-pdisplay-1/adaptive_image_copy_2042998356_copy_copy.img.png)
![Using a Coolant Refractometer to measure coolant system dilution](/content/dam/external/caltex/mea/images/coolant-refractometer-brochure.png)
View all Caltex Delo products
![](/content/chevron-lubricants/en_me/home/landing-page/how-to-series/using-a-coolant-refractometer/_jcr_content/parsys/simple_panel_231624462_copy/panel-parsys/multi_column/parsys-pdisplay-1/image.img.png)