Originally Posted by 89BonnieSE89
Time for rust coating. Do you have Krown or Rust Check in the US? Also get the underside oiled for furthur protection. The problem with rust...once its in the metal, there is no stopping the oxidation process.
All you can do now is preventative maintenance.
Umm actually that is not entirely true. Many companies make a product called rust converter. Most auto parts stores carry it. You brush it onto the rust and let it dry. It goes right into the rust and converts it into a hard black material. These products work great. I put it on big exterior rust patches on an old car I had once, and the rust never progressed any further, and I didn't even put paint over it. On my bonnie, I have been using it on all rust spots I find underneath the car. I have found that the paint is coming off at all the spot weld joints underneath the car, so I have been scraping them off and treating them. The converter also will stop rust on the metal brake lines, etc. You can follow it up with undercoating or paint if you want to. This product also comes in a small paint chip repair kit that is sold by GM.
It also helps to wash the underside of your car. Whenever I wash the car, I get down on the ground and try to wash off everything under the car. Do the wheelwells, and way up behind the rear bumper, etc. And once in a while I do the engine and everything under the hood. Just don't do it on a hot engine.
1992 green ssei. Tan leather, moonroof, power everything. 161k miles
Goodyear RSA Plus 225/60/16 VR on chromed factory crosslace rims. McGard chrome lugs.
Audio system: CD player w/equalizer, subwoofer (all stock).
Delco premium wires, NGK TR55 plugs, K&N stock style air filter. Ceramic brake pads. New rear brake tubing and proportioning valves. New wheel cylinders, front rotors and calipers. New front wheel bearings. Replaced crank sensor and harmonic balancer. Rebuilt instrument cluster. Cleaned A/C evaporator. Valve cover gaskets. Alternator. Front stabilizer links. Replaced all power steering lines and transmission lines. Cleaned MAF and IAC. New door appliques. Rebuilt steering gear. CERAMIC brake pads, I love them. I am listing all this in case someone needs advice on any of these repairs.