I have an 08 Electra Glide Classic. I noticed at the start of this season it appeared wet around the contact area of the front master cylinder reservoir and the lid where they seal together. The lid screws were tight. I tried to wipe it but it doesn't dry up, it just looks like a wet line around the edge of the opening. The lid had corrosive little bumps around the front (facing you) area. No DOT 4 fluid ever went on the bike paint, no fluid was ever seen actually leaking, but it never dried up. The HD replacemnt OEM cap is $60.00 in Canada. Chrome is about $100.00. I bought a Drag Specialty replacement chrome cap for $35.00 and it fits perfect. When I bought it from a non HD dealer but carries all HD parts I told him what happened and he said "Oh that DOT 4 brake fluid will eat through anything, don't get it on your paint or it will ruin the finish, (I knew that from the dealer telling me this when I bought it) those lids are replaced all the time because of that. You need DOT 4 for the ABS brakes" I just thought I'd pass this on so others can keep an eye on it.