[Ran440]

Hi everyone

Just got done greasing the drive shaft splines. Was expecting to find remnants of blue grease. What I found was black grease with no sign of it ever being blue. What was blue was the male splines which had a hard blue coating. Teflon maybe. Check <font color="blue"> This </font> . I thought everybody was saying Ford used a special blue colored grease. Maybe they were out of blue grease that day. /ubbthreads/images/graemlins/shrug.gif Anyway I used Moble 1, a red colored synthetic grease.

Randy

 

[GrampyJim]

Yes there is a blue coating on the splines.... no the grease is not blue... the grease is black because of the molybdenum disulphide...

Too many have no idea what they are looking at and refuse to think about it...

 

[Homegrown]

[ QUOTE ]
Yes there is a blue coating on the splines.... no the grease is not blue... the grease is black because of the molybdenum disulphide...

Too many have no idea what they are looking at and refuse to think about it...

[/ QUOTE ]

I checked my 1 lb. can that I bought at the local Ford dealer last year just to be sure - it's robin's egg blue (or I've gone color blind overnight) /ubbthreads/images/graemlins/eek.gif

 

[haul_n_horses2]

Hmmm......... I always use Mobil 1 synthetic grease in the zerks and it is a very deep purple color. The grease that comes out is always black. The OEM grease must have come out completely by now with more than 50 shots of grease over the past 48K miles. Can't the grease turn black because of oxidation and wear metals in the grease?

 

[cphilip]

[ QUOTE ]
...Can't the grease turn black because of oxidation and wear metals in the grease?

[/ QUOTE ]

I don't see why not. Could be some things wearing off and mixing in as well.

Normaly Blue/Green greases are Lithium complex greases and Black ones are molybdenum disulphide plus Lithium blended ones. Not to say colors cannot be added nor would blends of various bases and additives end up in various color combinations perhaps hiding some of the components colors. Intentionaly or not. Some of the clearer ones are intentionaly colored to give someone a marketing point. Some are just so cloudy and dark they cannot be altered all the much. Depends on the base and all that sort of thing.

 

[Ran440]

Homegrown

Hard to believe they used that blue colored grease on my splines because there was absolutely no sign of it ever being blue. I'm sure what you have is that blue spline grease, pt# D2AZ-19590-A that everyone has talked about. What exactly do they call it and is there an aftermarket equivalent from local auto parts stores.

Thanks,
Randy

 

[Homegrown]

[ QUOTE ]
Homegrown

I'm sure what you have is that blue spline grease, pt# D2AZ-19590-A that everyone has talked about. What exactly do they call it and is there an aftermarket equivalent from local auto parts stores.

Thanks,
Randy

[/ QUOTE ]

The part number matches mine and it's labeled as "lubricant - teflon grease"

I've heard all the stories about other teflon greases working OK or not working very long, but for $20 over the life of my truck - I'll buy the Ford version.

 

[klhansen]

I haven't looked at the 3 oz tube of Ford grease that I bought, but it's probably blue as well. I paid a bit over $6 for it. I couldn't see paying nearly $20 for probably 10 times more than I'd ever need. The tube's contents will probably last longer than the life of one vehicle, and maybe even two.

Driveshaft spline lube
D2AZ-19590-A for 1 lb.
XG-8 for 3 oz.