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greasing leaf springs to prevent rust? #4580542
11/20/17 10:17 PM
11/20/17 10:17 PM
Joined: Nov 2009
Posts: 5,220
Houston, Texas
motor_oil_madman Offline OP
motor_oil_madman  Offline OP

Joined: Nov 2009
Posts: 5,220
Houston, Texas
I'm going to put new leaf springs on my boat trailer since the old ones are getting too rusty. I figured I'd coat the new ones with grease since I have a ton of it that never gets used. Opinions?


2007.5 dodge cummins 6.7 liter. Chevron Delo400 15w40. 7000 mile or 250-300hr intervals.

Re: greasing leaf springs to prevent rust? [Re: motor_oil_madman] #4580548
11/20/17 10:24 PM
11/20/17 10:24 PM
Joined: Mar 2004
Posts: 21,848
Upstate NY
Donald Offline
Donald  Offline

Joined: Mar 2004
Posts: 21,848
Upstate NY
I would use CarWell or Fluid Film to soak in between the leaves. I have started to do that on my boat trailer. You have them not installed so turn them sideways and let the stuff seep down.

Last edited by Donald; 11/20/17 10:24 PM.

2015 Subaru Forester 2.5 engine/CVT
2015 Ford F250 w/Powerstroke
2016 Subaru Crosstrek CVT (wife's)
Re: greasing leaf springs to prevent rust? [Re: motor_oil_madman] #4580559
11/20/17 10:37 PM
11/20/17 10:37 PM
Joined: Jan 2007
Posts: 17,501
Clovis, CA
Merkava_4 Offline
Merkava_4  Offline

Joined: Jan 2007
Posts: 17,501
Clovis, CA
You need something more penetrating than grease.

Re: greasing leaf springs to prevent rust? [Re: motor_oil_madman] #4580593
11/20/17 11:12 PM
11/20/17 11:12 PM
Joined: Feb 2013
Posts: 11,343
Phoenix, AZ
Nick1994 Online content
Nick1994  Online Content

Joined: Feb 2013
Posts: 11,343
Phoenix, AZ
Auto Zone sells an aerosol can of Fluid Film, Even here in Phoenix.


2015 Hyundai Sonata 2.4L 92k STP Synthetic HM 10w30 & Wix
2000 Toyota Camry 2.2L 233k Mobil Super HM 10w40 & Fram Ultra
1996 Jeep Cherokee 4.0L 148k Mobil 1 HM 10w40 & Fram Ultra
Re: greasing leaf springs to prevent rust? [Re: Merkava_4] #4580618
11/21/17 12:46 AM
11/21/17 12:46 AM
Joined: Dec 2002
Posts: 42,625
New Jersey
JHZR2 Offline
Global Moderator
JHZR2  Offline
Global Moderator

Joined: Dec 2002
Posts: 42,625
New Jersey
Originally Posted By: Merkava_4
You need something more penetrating than grease.


For starters, yes. This is a case where I'd coat with carwell/known and then pack with a waterproof grease after.

Re: greasing leaf springs to prevent rust? [Re: motor_oil_madman] #4580622
11/21/17 01:01 AM
11/21/17 01:01 AM
Joined: Sep 2004
Posts: 8,011
Marshfield , MA
andyd Offline
andyd  Offline

Joined: Sep 2004
Posts: 8,011
Marshfield , MA
Greasing leaf springs was a weekly chore on the '23 Chrysler lube schedule.


'16 Camry LE STP synth 0w20 and STP filter. the Fridge

1994 Ranger ,the Rat, 5w30 dino, STP filter

'16 Camry SE, Valvoline HM 0w20 and OEM filter
Thick oil is better grin2
Re: greasing leaf springs to prevent rust? [Re: motor_oil_madman] #4580627
11/21/17 01:10 AM
11/21/17 01:10 AM
Joined: Sep 2015
Posts: 6,172
Kalifornia Kollective
BrocLuno Offline
BrocLuno  Offline

Joined: Sep 2015
Posts: 6,172
Kalifornia Kollective
It works fine unless you are drive/towing in extremely dusty environs. The dust will work into the grease between the leaves and can act a polishing agent. You'll get accelerated wear. But, if not pulling on desert roads, no biggie laugh

We used to oil and grease the springs on the horse trailers so thet'd ride better and to resist the horse p laugh


Formerly in marine engineering. In an earlier life I owned my own petroleum tank truck, and hauled for the majors and independent's.
Re: greasing leaf springs to prevent rust? [Re: motor_oil_madman] #4580637
11/21/17 02:01 AM
11/21/17 02:01 AM
Joined: Nov 2009
Posts: 5,220
Houston, Texas
motor_oil_madman Offline OP
motor_oil_madman  Offline OP

Joined: Nov 2009
Posts: 5,220
Houston, Texas
I just see any kind of aerosol spray washing off as soon as it's dunked in the water.


2007.5 dodge cummins 6.7 liter. Chevron Delo400 15w40. 7000 mile or 250-300hr intervals.

Re: greasing leaf springs to prevent rust? [Re: motor_oil_madman] #4580643
11/21/17 02:43 AM
11/21/17 02:43 AM
Joined: Jun 2012
Posts: 717
Reno, NV
redbone3 Offline
redbone3  Offline

Joined: Jun 2012
Posts: 717
Reno, NV
I wonder if motorcycle chain lube might do for this job?


2014 Passat Wolfsburg, 1995 Miata.
Re: greasing leaf springs to prevent rust? [Re: redbone3] #4580653
11/21/17 03:22 AM
11/21/17 03:22 AM
Joined: Jul 2005
Posts: 31,677
NY
demarpaint Offline
demarpaint  Offline

Joined: Jul 2005
Posts: 31,677
NY
Originally Posted By: redbone3
I wonder if motorcycle chain lube might do for this job?


It will work as good as FF, maybe better. It will have to be reapplied often though, just like FF.


God Bless Our Troops

Re: greasing leaf springs to prevent rust? [Re: motor_oil_madman] #4580657
11/21/17 03:43 AM
11/21/17 03:43 AM
Joined: Oct 2012
Posts: 4,825
Taiwan
Ducked Offline
Ducked  Offline

Joined: Oct 2012
Posts: 4,825
Taiwan
I think some leaf springs are drilled and have a grease nipple so youy can grease them with a gun from the inside out

You could perhaps get that done if you can find someone who knows what they're doing. DIY or inexpert pro you might risk starting cracks.

Failing that heat the grease to above its melting point and run it in sideways, as suggested above

Or use oil. If concerned about it washing off, use vegetable oil, (though this will eventually set solid) or a blend.

You can get or make spring covers but you probably dont want that on a boat trailer.


Re: greasing leaf springs to prevent rust? [Re: motor_oil_madman] #4580720
11/21/17 07:29 AM
11/21/17 07:29 AM
Joined: Mar 2004
Posts: 21,848
Upstate NY
Donald Offline
Donald  Offline

Joined: Mar 2004
Posts: 21,848
Upstate NY
Is the trailer dunked in fresh or salt water?CarWell or FF or Krown will not easily wash off. But they will eventually need to be reapplied.


2015 Subaru Forester 2.5 engine/CVT
2015 Ford F250 w/Powerstroke
2016 Subaru Crosstrek CVT (wife's)
Re: greasing leaf springs to prevent rust? [Re: motor_oil_madman] #4580723
11/21/17 07:38 AM
11/21/17 07:38 AM
Joined: Oct 2012
Posts: 4,825
Taiwan
Ducked Offline
Ducked  Offline

Joined: Oct 2012
Posts: 4,825
Taiwan
Some British Leyland Sherpas had fibre reinforced plastic spring leafs. Dunno how unique that is but if you could get something similar it'd solve your rust problem.

Corvette transverse, some Mercedes and Audi, apparently

http://www.flex-form.com/products.asp

Re: greasing leaf springs to prevent rust? [Re: demarpaint] #4580729
11/21/17 07:47 AM
11/21/17 07:47 AM
Joined: Dec 2002
Posts: 42,625
New Jersey
JHZR2 Offline
Global Moderator
JHZR2  Offline
Global Moderator

Joined: Dec 2002
Posts: 42,625
New Jersey
Originally Posted By: demarpaint
Originally Posted By: redbone3
I wonder if motorcycle chain lube might do for this job?


It will work as good as FF, maybe better. It will have to be reapplied often though, just like FF.


Yeah, that's why I didn't recommend FF prior to greasing, I feel that known/carwell film lasts a bit longer in hi wash areas.

My Saab, which had been to Krown multiple times, always had a slight dirt/oily residue on the struts and wheelwell components which was reassuring to me.

Top the known with grease to lock it in and I'm hoping it will stay wicked in longer.

Re: greasing leaf springs to prevent rust? [Re: motor_oil_madman] #4580775
11/21/17 08:53 AM
11/21/17 08:53 AM
Joined: Dec 2003
Posts: 10,086
Florida, Cape Coral
Eddie Offline
Eddie  Offline

Joined: Dec 2003
Posts: 10,086
Florida, Cape Coral
Many leaf springs are meant to not have an external lubricate applied. The spring lief themselves are supposed to have a specific friction between them. I once had a vehicle with leaf springs and I jacked up the vehicle and sprayed oil between the leafs. The rear of the vehicle became very soft and was a danger to turn quickly. Ed


CX5 Touring 2.5L :-)
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