Now I Really Know Why Rustproofing Is A Big Deal In The North East U.S.

[64bawagon]

I try to spend as much time as possible in the South during winter. I aint built for an entire winter here anymore.

 

[redhat]

Living in Western New York, I will say that heavy Fluid Film/woolwax and frequent washing is keeping both the 2005 Suburban and Tahoe in decent shape.

That is the key. Doing something.

 

[doublebase]

Living in Western New York, I will say that heavy Fluid Film/woolwax and frequent washing is keeping both the 2005 Suburban and Tahoe in decent shape.

That is the key. Doing something.

I’ll tell you one thing that I tried last year...not rinsing the undercarriage during winter when you have a rust proofing treatment on under there. I always did previously, people suggested not too, and this time I listened. Big difference.

Now, I did switch from Fluid Film to NH Oil Undercoating, and that probably helped too. After the winter was over I took a look under there and it appeared as if all the treatment was still remaining! And I treated the vehicle last September. That’s never happened before. Usually with the Fluid Film it’s pretty much gone after the winter, this year the NH Oil was still there. Everywhere. So, I’m not sure if it was the product, or refraining from rinsing salt off the undercarriage. But I recently bought my son a Jeep, crawled under it, the thing is covered in NH Oil undercoating - I asked the guy what it was, he confirmed it was the NH Oil, said he got it treated last fall - the stuff was very much still apparent and completely soaked under there with the treatment.

 

[JTK]

...Now, I did switch from Fluid Film to NH Oil Undercoating, and that probably helped too. After the winter was over I took a look under there and it appeared as if all the treatment was still remaining!...

Is NH oil a thicker product than FF?

I've had he same result as you describe by using woolwax. I do prefer FF for internal cavities, but you can use the thicker WW for those areas too.

My vehicles typically do not see a washing from November until around April. So much corrosive materials remain everywhere you drive where I live, its pointless for my daily drivers.

 

[doublebase]

Is NH oil a thicker product than FF?

I've had he same result as you describe by using woolwax. I do prefer FF for internal cavities, but you can use the thicker WW for those areas too.

My vehicles typically do not see a washing from November until around April. So much corrosive materials remain everywhere you drive where I live, its pointless for my daily drivers.

Honestly, I really didn’t think it was thicker, but for some reason it just stuck and stayed there. I personally don’t think there’s much difference between any of these products, but yeah, the fluid film seems to leave my vehicle pretty quickly. I’ll usually apply something a little heavier to the high traffic areas underneath, like a white lithium grease or cosmoline. But I’d definitely buy the NH Oil again.

 

[John105]

Is NH oil a thicker product than FF?

I've had he same result as you describe by using woolwax. I do prefer FF for internal cavities, but you can use the thicker WW for those areas too.

My vehicles typically do not see a washing from November until around April. So much corrosive materials remain everywhere you drive where I live, its pointless for my daily drivers.

I get the feeling that's how it is in Canada, as nice cars are just encased in salt. Whereas it seems here, people rush to the wash and lines are long in the winter. We're more vain I guess. And "monthly" rates are everywhere, with single washes jacked up.

 

[redhat]

I recently bought an oil undercoating gun and a gallon of Fluid Film black to touch up internal frame areas and what not. My usual yearly application of a rustproofing coating is Woolwax -- my cousin has a shop and does it yearly. I go to him for that.

My wife has a wash plan through GO Wash (formerly Royal) and I have a Delta Sonic and GO Wash plan on my Tahoe. I frequent them daily in the winter and I'll confirm that the Woolwax has held up super well.

Woolwax - I find if it is applied in July-September and given time to creep/"Cure", it doesn't wash off easily.

 

[camrydriver111]

FWIW at the Krown shop they said not to wash the undercarriage in the winter. They said the hot water will accelerate the rust reaction.

Krown seems to be a little bit different than the other oil sprays. The oil is merely a solvent for the corrosion inhibitor compounds. The oil itself isn't a powerful inhibitor. This is why the stuff is so much thinner than other oil sprays and may even appear dry after a short time. So dry doesn't necessarily mean unprotected.

I want to try FF but there is way less shops that apply it.

 

[bubbanik]

I generally power wash the under carriage of all my vehicles in the early Spring. Also, any time it warms up during the winter, if we get a couple days in the 40s-50s or so I'll hit them with the blaster as well. Any of the salt, mud, snow, slush mess that gets caught up there I can get removed the better.

 

[CT Rob]

New York PAVES the roads with salt in the winter.They arent afraid of laying it down heavy.CT on the other hand just sprinkles salt on the road