I used fluid film on my newer truck and it smelled for a few days then it was gone .You could spray a test on a piece of metal and see how it is in a few days .I don’t think in that area you would need to put a lot but would be good for the seams and joints to seep in and keep the rust from starting

Last edited by KEVINSKI; 08/23/2025 10:10 PM. Reason: More imfo

1954 Canadian GMC 9300
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