I've heard it stated many times that Rust-Oleum is fuel proof. I just finished an airboat with the stuff and my biggest complaint was that it took forever. Used Rust-Oleum auto primer to fill the wood and wet sanded before applying the finish coat of white. Each procedure used up an entire day waiting for the stuff to dry. Haven't run the engine yet. After this I will use Lustrekote which dries rapidly I have never had it bothered by nitro and I use 15%. Lusterkote is in a sray can and applies the same as any other spray can paint. I could have done my airboat in two days instead of wasting the better part of a week on the finish and I'm sure it would be just as fuel proof as Rust-Oleum. The difference is about $6 per can. The ease of application and time saving is well worth it to me.