Use the MFA-16 Magnetic Crack Detection Oil Spray with one of our Magnetic Crack Detection Units to find cracks in heads and blocks. This Crack Detection Oil Spray is pre-mixed with fluorescent magnetic powder suspended in a low viscosity oil. 16 fl. oz. per can. (Replaces discontinued MFA-12).

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NOTE: This product is classified as a hazardous substance when shipped by air. If you are outside of the US or need the product overnight, you may prefer the Crack Detection Powder (GCR-14A-4) and Oil Carrier (GCR-50) or the premixed oil (MFA-50).