If you don’t see any coolant in the reservoir, or at the top of the radiator, add coolant to your system and run the vehicle ...

Test strips are dipped into the coolant through the radiator opening and will indicate ratios of glycol and nitrites, helping you keep them in proper balance.

Penray says its TS200 3-Way Universal Test Strips are the first and only test strips designed for all heavy-duty coolant types, including extended-life coolant. The test strips are designed to ...

If you are not running manufacturer-specific coolant, use test strips to monitor additive levels and top up as required.