Have grease "Mixing" Questions

[jdw1222]

I know you have to keep the greases of the same type when adding new grease.

Have a few questions. This is for my boat and boat trailer, and I have been using Pennzoil marine grease, NLGI #2. So can I mix anything that is stamped with NLGI #2 on it safely? I had to use a little bit of the supertech marine grease, and also have some stuff called "Mystic" #2 that I picked up on clearance at Walmart. Is it ok to mix that in too?

Then I notice that lucas makes a red and tacky #2 grease that is supposed to be really good agianst water and was wondering if that is better and compatible (this is red and my other marine greases have been green or clear). AM I lookign at the correct specs for grease or is their something else I need to look for when picking the correct grease

 

[Boomer]

Are you putting your trailer into salt water? If so, an aluminum based grease is the one to use and most boat dealers carry it. Lithium grease does not hold up well around saodium chloride in water.

 

[jdw1222]

Yes it is saltwater, Are any of the greases I used (Pennzoil or Supertech marine) lithium?

 

[Tempest]

Pennzoil marine grease uses a Calcium complex thickener and is a very good choice for marine bearings.

You need to look at the thickener type as to compatibility.

Google grease compatibility chart and you will get many to look at.

The Supertech marine is probably a lithium grease and should be fine for mixing though it is always best not to mix. Lithium is not as good for marine applications but will be fine for a shorter time.

I would stick with the Pennzoil marine grease above all else you mentioned.

 

[jdw1222]

I like the Pennzoil, and try to use it. I ran out though when Installing my new wheel hubs/bearings so I used the Supertech Marine grease and about halfway through the job so the 2 are mixed. Is it ok?

 

[Tempest]

You should be OK. Just change it out maybe in half the time you normally would.

Does supertech list a thickener type on the tube?

 

[jdw1222]

Not sure on the supertech, but I will check next time i go to walmart.

The mystic stuff I used has JT6 on the tube