Good morning all. Long time reader, first time writer... So I’ve read the forums on Penetrol and watched a few videos and here’s my backstory before the question. TLDR can skip down. I inherited a 1950 Ford f1 that was primed but my grandpa never painted. It sat outside in San Diego for 10 years, majority under a car cover but it still got surface rust. I’ve been cleaning the rust off now. I’d say 80% of primer is still solid but rust has formed where bare sheet metal is showing now. I looking for a way to seal it while I save up to have it painted. I have tried Gibbs oil but living in Houston it’s humid all the time and the spots rust return after about a week. I’ve seen lots of other options like WD-40 and linseed oil but I’m looking for something that won’t affect painting later. My question is: If I apply Penetrol will it affect my ability to have it painted later (maybe a year or two down the road). And I would just sand down like normal paint prep process when I’m ready?