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under chassis clean wash #4550676
10/22/17 01:28 AM
10/22/17 01:28 AM
Joined: Jan 2008
Posts: 728
indianapolis in
bmwjohn Offline OP
bmwjohn  Offline OP

Joined: Jan 2008
Posts: 728
indianapolis in
Hi: thinking about manual pump sprayer with vinegar water mix aimed at truck frame and related, with moderate rust. Will this neutralize the rust? Then spray with power washer, than just bought a sprayer with fluid film and spray? Overall leave it clean and dry, then rust resistant? Thoughts?

Re: under chassis clean wash [Re: bmwjohn] #4550691
10/22/17 02:40 AM
10/22/17 02:40 AM
Joined: Sep 2014
Posts: 1,550
Seattle-ish, WA
Oro_O Offline
Oro_O  Offline

Joined: Sep 2014
Posts: 1,550
Seattle-ish, WA
If it were a fungal infection, a vinegar douche applied periodically would work. For rust, no.

Get under and scrub it with a wire brush and then try to de-grease as best you can. Then hit it with a rust converter spray. The Rustoleum brand one is very affordable at Walmart.

This is going to blow away a very weak passive neutralizing spray and then wax coverage, and really not be that much harder and likely less expensive given the silly cost of FF.

Re: under chassis clean wash [Re: bmwjohn] #4550724
10/22/17 05:48 AM
10/22/17 05:48 AM
Joined: May 2013
Posts: 704
Florida
SilverSnake Offline
SilverSnake  Offline

Joined: May 2013
Posts: 704
Florida
Power wash undercarriage and let dry thoroughly. Apply S-100 Corrosion Protectant. Will STOP rust completely and make the frame look much better. Is a clear spray.

https://www.autogeek.net/s1tocycoprae.html


2016 Charger, 6.4L-485 HP (PUP 0W-40)
2017 BMW 330i, 2L-248 HP (BMW 0W-20)
2018 Jeep GC, 5.7L-360 HP (PUP 5W-20)
2008 20KW Generac (Amsoil 10W-30/30)
Re: under chassis clean wash [Re: bmwjohn] #4550741
10/22/17 06:38 AM
10/22/17 06:38 AM
Joined: Sep 2010
Posts: 8,226
Texas
4WD Offline
4WD  Offline

Joined: Sep 2010
Posts: 8,226
Texas



Re: under chassis clean wash [Re: Oro_O] #4550797
10/22/17 08:36 AM
10/22/17 08:36 AM
Joined: Jul 2014
Posts: 1,657
Canada
camrydriver111 Offline
camrydriver111  Offline

Joined: Jul 2014
Posts: 1,657
Canada
Originally Posted By: Oro_O
If it were a fungal infection, a vinegar douche applied periodically would work. For rust, no.


I think he wants to use the vinegar to remove salt.


BITOG or: How I Learned to Stop Worrying and Love the Extended OCI
Re: under chassis clean wash [Re: bmwjohn] #4550935
10/22/17 10:42 AM
10/22/17 10:42 AM
Joined: Mar 2004
Posts: 21,867
Upstate NY
Donald Online content
Donald  Online Content

Joined: Mar 2004
Posts: 21,867
Upstate NY
You just need to get major dirt off the vehicle before using FF or CarWell. At the shops they just use compressed air. It will soak through whatever is left after cleaning with compressed air.


2015 Subaru Forester 2.5 engine/CVT
2015 Ford F250 w/Powerstroke
2016 Subaru Crosstrek CVT (wife's)
Re: under chassis clean wash [Re: camrydriver111] #4551139
10/22/17 03:24 PM
10/22/17 03:24 PM
Joined: Jan 2008
Posts: 728
indianapolis in
bmwjohn Offline OP
bmwjohn  Offline OP

Joined: Jan 2008
Posts: 728
indianapolis in
supposedly vinegar counteracts rust. I have tried it on small metal items and it helped, but don't know what it does if left on.

Re: under chassis clean wash [Re: bmwjohn] #4551227
10/22/17 05:38 PM
10/22/17 05:38 PM
Joined: Sep 2012
Posts: 5,525
DFW
DBMaster Offline
DBMaster  Offline

Joined: Sep 2012
Posts: 5,525
DFW
Here's an extreme vinegar rust removal soak. Apparently, the guy forgot about the tools he was soaking for 19 months.


Re: under chassis clean wash [Re: bmwjohn] #4551231
10/22/17 05:41 PM
10/22/17 05:41 PM
Joined: Aug 2008
Posts: 24,146
ON, Canada eh?
StevieC Online content
StevieC  Online Content

Joined: Aug 2008
Posts: 24,146
ON, Canada eh?
I never wash the underneath of my undercarriage for the life of the vehicles because it gets sprayed with rust proofing spray yearly. 20 years and 1/2 a million kilometers later no rust. smile


'18 Dodge Grand Caravan GT - 26k KM - AMSOIL SS 0w20
'06 Hyundai Santa Fe - 535k KM AMSOIL SS 0w30
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