I was talking about this to another Roadster owner the other day. Does anyone know for sure that Roadsters are not waxed inside the chassis legs and that MX5's are. Both cars appear to have identical coatings of underseal (ie. bugger all around the boot). After all, Ralliart have admitted that they don't do anything more to official FTOs beyond the factory finish. Of course such rustproofing is irrelevant on a 6 year old car. Japanese spec cars arrive essentially rust free (if there is rusting, its usually down to crash damage). Anyone with a car 6 years or more old, UK car or not, and wants to keep it for a long period should consider rustproofing.

I've been told by a pro that its not necessary to do the whole underside of any car. Main areas to pay attention to are chassis legs, sill cavities and the gap bewteen the rear inner and outer wings (rot starts here due to a condensation trap). (11/99)

Only the Mk2 is part galvanized.

They do rust; I've spotted imports/MX5s with rust on the windscreen surround, boot lid frame, between inner and outer wings, lower door hinge fixing point, edges of drain plug on boot floor. However, there is something about the primer which makes it resistant (but not impervious) to rust.

I used the Waxoyl kit, but its still at the bottom of the garden where I threw it in disgust. The hand-operated pump is useless, even after you've thinned/warmed the waxoyl as directed. I ended up having globules of waxoyl dripping out of the drain points of the sills and the car stinking of the stuff for a month afterwards. Unless you've got a sprayer to do this, maybe best to pay someone to do this, as I've heard unless you apply waxoyl evenly, it can create sink spots, and even hasten corrosion. I spotted in a classic car mag an air bottle than can be refilled by a tyre compressor, and used for spraying etc. It only cost £18; anyone ever used one of these? Ideal for the economically-challenged... (11/99)