The new XCP non-gooey stuff seems to come out very well, so will try some. I still have some ACF and Lanoguard left. The Lanoguard stood up well this winter for both the bike and the underside of the car. I had a look underneath the car when it was in for service and it's suffered no serious corrosion after a winter on salt strewn roads with just one application in November. The bike faired equally as well over winter. I guess it doesn't much matter which you chose as long as you frequently recoat if using up some of the stuff which didn't fair as well in that test. The only casuatly over winter was my bike's wheel rims...despite being acf'd the paint came off areas (water based rubbish) so I re-sprayed and coated with a 2K satin lacquer, job done and they'll not need anything else now. You can use it on the engine casings too (there are some that can be applied to areas getting quite warm like cylinder heads). Prep is the key though.