What if your car does not have a radiator cap? Can you still put the pressure tester on the overflow jug to check it that way? - Quora
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MotoRad T16R Radiator Cap Fits select: 2017-2021 HONDA CR-V, 2012-2022 HYUNDAI ELANTRA - Walmart.com
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Amazon.com: Stant 10331 Automotive Accessories Safety Radiator Cap, 16 psi, Metal, Black : Automotive
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