I've often heard that some synthetic lubes (grease-gun grease) will not mix with lithium and petroleum lubes. Does anyone here have any knowledge of brands or types that will not mix?
Thanks...Al

What are you trying to lube?

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Auto Zentral Ltd.

Most synthetic automotive greases are lithium-based.

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95 E320 Cabriolet, 169K

Autozen, I have a '93 300e and an '85 190D that I service regularly. My question on the lube is for the zerks on the ball joints, steering parts, etc.
I also have farm equipment and other vehicles (phords, chivvies, chryslers,
and a Jag or two). I hate to have a special grease gun for each vehicle so I was looking for products that would work for all or most of the vehicles and equipment.
Thanks
Al

First of all there is nothing to lube on the two MBs you mentioned unless you special ordered them with lube fittings which I don't think you can do. Secondly I think you are making too much of this and fretting for nothing. Go down to the automotive store and get some tubes of good old chassis grease. Since there is such fearce competition in many markets today, MFGs are making up advertising gimmicks to sell a virtually unchanged product. It probably started in the 50s when everyone had a blender on the kitchen counter. One company got a slick idea to throw a diode inside that did nothing, but they could then call it SOLID STATE. Before synthetic grease came on the scene, wheel bearings have been packed in GOOD OLD GREASE and all the wheel bearings in the world have travelled billions of trouble free miles.

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Auto Zentral Ltd.

This may help: Grease compatability chart

If you want an all-around premium grease that's easily available, use Mobil synthetic.

If you need something more affordable, considering the volume of grease you'll be using, you'll do fine with any lithium-based, NLGI-2 grease with EP additives. It should state it as such on the container. It is available almost anywhere grease is sold over the counter.

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95 E320 Cabriolet, 169K