tbb2

Due to issues around the brakes I am looking to add to or change the caliper pin grease.

One video source recommended not mixing different types of grease and thoroughly cleaning the caliper pin pockets before adding grease.

That one source is the only place I see this. But it fits my thinking on keeping the machine clean.
I purchased the van used, and have no idea what may have been used in the past to grease the calipers.

Anyone have a view to this?

kevinkpk

I use just a synthetic grease, high temp.

mountainmanjoe

I don't see how it would be a problem. Grease is thick so it doesn't really mix. Just buy "brake grease".

GatorHawk24

Use a high-temp "brake grease" as other's have suggested, and be careful not to get it on your pads or rotors. It really doesn't take much grease to do the job, one tube could do several cars.

I don't think that "mixing" grease is really a problem, but you might want to do a thorough cleaning anyway. The pin grease can get really dirty and tacky, which will reduce the caliper's ability to move freely. Plan to use a few cans of brake cleaner because it can be difficult to get the old grease out of the caliper.

tech2

I have only seen swelling issues when I worked for Nissan and a generic lubricant. gm parts will sell you the correct lubricant if your worried.

tbb2

I will go the clean and replace route.

kevinkpk

Even sometimes with using grease on the pins to keep from seizing, they sometimes still seize, then you have to use the blue noised wrench.

tbb2

Big lot of worry on mixing grease.
There was very little at all on the pins.

A copper colored paste came out of the base of the pin pockets.
I wounder if 'whoever' used copper anti-seize on the pins?

I see a, much belated, all around disassembly, cleaning and lub in my future.

On the subject of pins ... they are supposed to be perfect cylinders aren't they?
The top one has three equal flats evenly spaced around the circumference of the pin.

tech2

some techs use anti seize but I think its a mistake for caliper pins....cakes up. they manufacturers don't use anti seize so neither do I

GatorHawk24

The flat areas are normal. They provide a relief for additional grease to remain around the pins.