- Jan 19, 2021
- Renton, WA
Doing a lot of research lately regarding rust repair and paint for my 1981. It seems to be a widely accepted truth that the later model FJ40's rust worse than the earlier models. All the discussions I've seen on this topic focus on the quality of the steel, making assumptions that the steel has less chromium or nickel than the earlier models. This is entirely possible. Seems weird that Toyota would have gone backwards in quality but anything is possible. This got me considering the paint. When did Japan stop using lead in paint? I believe it was outlawed in the United States for use in cars in 1978, but what about in Japan? Could this be the reason for the increased rust in the later model 40's? It seems that hexavalent chromium and zinc phosphates are still used in some paints for corrosion resistance. Maybe the true source of rust on the later model cruisers is a change in the paint formula around 1978-1979. Does lead in paint make that big of a difference in corrosion resistance? Anyone have information on this?