Mixed grease in truck

[ridindirty041]

So I was greasing my truck today and realized I had grabbed the wrong grease tube. I usually use

327-2 Armor Plate Grease with Moly-D / NLGI #2

Instead I grabbed Lucas Oil 10301 Xtra Heavy-Duty Grease

From what I can find online these two are not compatible or recommended, so now that my kingpins, tie rods, u joints and slip joint on drive line now has the Lucas in them how screwed am I?

Do I just pump them till I see the new grease coming out of everywhere to "flush" the old grease? I run over the road with enough issues and don't want a component failing due to grease. (The slip joint on drive line never shows grease coming out so that's a main issue I'd like to avoid on what to do in this situation)

Any help is much appreciated

 

[Rand]

So you mixed a Clay based grease with polyurea based.

uh pretty not good.. but you knew that.

@MolaKule might be able to give more details on issues?

 

[ridindirty041]

So you mixed a Clay based grease with polyurea based.

uh pretty not good.. but you knew that.

@MolaKule might be able to give more details on issues?

Yeah so far I went back around the truck and just pumped everything with grease till I seen the lighter green color coming out of everywhere, the only thing that doesn't pump grease out is the slip joint in drive line so I just pumped it 5x more then I normally would

 

[MolaKule]

Polyurea and other binders/thickeners are generally not compatible.

My suggestion is pump as much of the Lucas grease into the fittings as possible in order to "purge" the Lubriplate from the fittings.

 

[ridindirty041]

Polyurea and other binders/thickeners are generally not compatible.

My suggestion is pump as much of the Lucas grease into the fittings as possible in order to "purge" the Lubriplate from the fittings.

Yeah I went around and pumped kingpins, tie rods, joints, everything allot till I could see the lighter green coming out

I grease my truck around every 5k should I do it allot sooner now? Til this stuff is fully in there?

So far I've used 1.5 tubes on 3 joints, 2 upper lower king pins, 2 tie rods, and drive shaft slip joint.

 

[GMBoy]

I think you flushed it out enough to be safe. Maybe, to go the extra mile, flush it again like that at the next oil change.

 

[Rand]

That's about as much as you can do now.. maybe do it again sooner than normal.
ie 3k instead of 5k miles a couple times.

 

[ridindirty041]

I think you flushed it out enough to be safe. Maybe, to go the extra mile, flush it again like that at the next oil change.

I change oil every 12k, but I grease it around 4-5k or every 2weeks .

 

[ridindirty041]

That's about as much as you can do now.. maybe do it again sooner than normal.
ie 3k instead of 5k miles a couple times.

That's what I was thinking maybe grease it again when I get back on west Coast from Louisiana next week

 

[edhackett]

There's polyurea and there's shear stable polyurea grease bases. Conventional polyurea is not compatible with any other grease base. Shear stable polyurea is compatible with most other bases, including bentonite clay. Many companies don't distinguish between the two in their literature.

The description of the Lucas grease you used hints at shear stable, which is the most common in over the counter, multi-purpose greases. Contact Lucas to confirm the use of shear stable polyurea base or just confirm compatibility of the grease.

Ed

 

[ridindirty041]

There's polyurea and there's shear stable polyurea grease bases. Conventional polyurea is not compatible with any other grease base. Shear stable polyurea is compatible with most other bases, including bentonite clay. Many companies don't distinguish between the two in their literature.

The description of the Lucas grease you used hints at shear stable, which is the most common in over the counter, multi-purpose greases. Contact Lucas to confirm the use of shear stable polyurea base or just confirm compatibility of the grease.

Ed

Yeah I noticed that to when looking at the charts and stuff then I noticed on the bottom of Lucas page about this grease it says shear stable, so maybe I'm not as f'd as I thought?

I don't like mixing it and had a long night with blown power steering line but I f'd up and didn't look when I grabbed it

 

[Creekside]

OTR trucks run through multiple different shops with multiple different greases. I know there's certain applications where mixing grease would be a huge disaster but I don't believe OTR is one of them. That's based on my opinion and experience. You already purged it so maybe just cut your interval in half for the next time if it makes you sleep better.

For example-Prime Inc has 10,875 power units. How many different shops out on the road do you think their trucks see in a year?

 

[ridindirty041]

OTR trucks run through multiple different shops with multiple different greases. I know there's certain applications where mixing grease would be a huge disaster but I don't believe OTR is one of them. That's based on my opinion and experience. You already purged it so maybe just cut your interval in half for the next time if it makes you sleep better.

For example-Prime Inc has 10,875 power units. How many different shops out on the road do you think their trucks see in a year?

Yeah this is pretty similar to a point my wife brought up about the few times I've had a shop do it if the truck was in getting something done, it makes sense probably every shop uses whatever they can get the cheapest bulk

 

[Creekside]

Yeah this is pretty similar to a point my wife brought up about the few times I've had a shop do it if the truck was in getting something done, it makes sense probably every shop uses whatever they can get the cheapest bulk

I worked for a truck dealership for a while and when we billed out materials for a PM it was 4 pounds of grease on each one. The part number was 153011 and I never even knew what it was. It was housed in a separate room with the bulk fluids and everything was on reels. Didn't matter who or what truck they all got the 153011. I couldn't even tell you what color it was.