I have a so called rust protection system installed on my D22 single cab... I was told it was over kill... It's for vehicle that spends a lot of time on the beach... Guaranteed for 10 years from the manufactures date.... Year 5 of having it and only 4 beach trips under my belt, I have found rust on the radiator mount... It's a small spot but it's not mention to rust at all. Today I found a little bit more in seams on the chasis, don't get me wrong it's not a lot but it's there.... TJM keep coming up with excuses... Rubber mounts prevent current flow... Surface rust is normal but it won't start flaking off. Before anyone says it I spend at least 2-3 hours and then gernie cleaning it after each beach trip as well as giving it a hose a few days after that to make sure.... What can I do... What should I put on the small spots that are there... Penetrol... Rust converter. TJM seem to have cleared them selves of it... Even with the company guarantee of 10 years I have not heard back from couplertec!