Thanks for the replies. We have used many of the tubes that are red & white. The grease in these has a brown tint but has never been gritty when you rub some between finger & thumb. I opened another new tube and the same thing, almost feels like valve grinding paste and these tubes were sealed. If I used this stuff on the motor wicks, I don't think it would ever make it to motor bushing & shaft. I did find a full tube of the singer lube in the lead tubes and is nice opaque color. Either I got a bad batch or this is how one supplier made it for them. I will be finding a new brand & source for lube.............