Take the time to look at the Bennets link I supplied above. It is a pretty exhaustive test of a range of anti corrosion products. Some of which are well advertised do not perform very well. Agreed waterless wash won't solve the OPs issues. In some cases a good wet wash will do more to prevent atmospheric related corrosion by removing the salt spray, road grime and associated crud than a waterless wash. The key is making sure you remove standing water from problem area afterwards.
For me a waterless is wash is only used for a interim between decent washes. Fortunately corrosion is not an issue where I live so I can get away with 1-2 full wet details annually.
2000 F4 750
Last edited by Glenno; 07-25-2018 at 12:46 AM.