out of curiosity, how many of you guys will or did rustproof their g37?

 

What do you mean by rustproofing?

 

My car has some mild surface rust on the under carriage since it came from Chicago. I'm going to clean it up and spray POR15 on those parts. The exhaust will likely be replaced

 

if you're talking about the undercarriage/chassis, then you don't need to apply anything. it's rust proofed from the factory. if you're talking about particular components, such as exhaust or suspension parts, then idk. don't think people rust proof those. i never bothered. had the car's undercarriage not been rust proofed from the factory though, i would have probably had it done on a car like that. at least mine is rust proofed. although i bought it used, i doubt the first owner did that to his/her car. pretty sure it's factory. there is some sort of oil spray out there though that tends to help. grease/oil keeps rust from getting to the metal.

 

When I brought the car to my mechanic to have the power steering rack replaced, he told me I need my undercarriage done cuz there's this growing on I think the lower subframe if I'm not mistaken, correct me if I'm wrong. I will google to where I can find POR15 in canada, and it seems like its canadian.

 

My car is rust proofed and most of the underneath is covered in rust. It's the nature of winters though.

 

Both you and I live in Canada lol
I thought Alberta use sand not salt like here in ottawa??

 

I'm from Alberta the car is from Ontaribble. We do use salt here too, just a smaller amount.

 

unless the bottom of your car is stainless steel theres no such thing as factory or aftermarket rust proofing. road salt will eventually eat away at whatever you spray on the underbody to protect the chassis from rust. even aluminum can form corrosion wear from electrolysis due to dissimilar metals touching each other, such as a steel bolt or nut fastening an aluminum part such as the subframe or control arms. you guys in road salt hell are forever doomed with underbody corrosion.

 

Mine came from Toronto

 

What you can do is buy some manual pump deck spray, normally comes in 2 Gallons size or bigger. Then buy some gallons of concentrated Salt away liquid or equivalent salt remover normally sell by boat store etc... Spray the undercarriage before winter and don't rinse it.

During winter, after you go to the car wash with undercarriage cleaning capability, then spray some more salt away remover underneath.

Prevention is the key!

If rust is already formed, you can buy rust neutralizer or encapsulator from Eastwood company.

http://search.eastwood.com/search?w=rust%20encapsulator

Just use a steel brush to remove some of the rust that can be dislodge and spray some brake cleaner and wait until it is dry. Then apply the rust encapsulator . If the rust is on the suspension Lower Arm, use a liquid type rubberized rust encapsulator. You need paint brush to apply this. I highly recommend buying a cheap disposable painters drop cloth, since this really sticks to your garage floor.

If rust is a bit harder to reach, buy the rust encapsulator in a spray can. (Non rubberrized). I recommend buying both just for flexibility...

Be careful not to apply this on the bolts. It will be harder to remove the bolts if you need to remove them.

Make sure you buy the black color rust encapsulator and not white or silver! LOL!

Hope this helps...

 

I just hose the undercarriage to get all the salt off. PA uses a ton of salt but snow is generally just a few isolated events over the winter.

 

You guys are making my inner DIY'er sweat.. I don't have to deal with rust and those undercarriage/exhaust bolts are already tough enough!

 

I picked up my G37 a few days ago, and will get it Krowned ASAP.
If there is salt used on your roads (and you plan to keep your car a long time), Krown it. It is cheap protection. Not just for the body, but for the frame.

My 95 Maxima front cross member (holds the front motor mount) rusted so much, it was paper thin.

 

The place near me are booked until January 7.