Cummins12V98 wrote:
The GOOD stuff!
Why is the NLGI grade important though? The grease i used is grade 1 but its actually thicker than some of the greases they recommended with grade 2. I imagine its thinner at work temperatures as its pretty good stuff to work with and pack the bearings but at the rated temps of 40 and 100 degrees Celsius its actually thicker. This leads me to believe that a thinner working temp will be less likely to blow out the rear seal if i choose to use the super lube/ ez lube function in the future. It also has 5% moly which is supposed to be good for heavy applications.
EDIT: i did speak with support at philips 66, i gave them the specs that lippert was asking for from the manual. He said im more than fine with the megaplex XD5 # 1. The consistency meets minimum thickness at operating temps (Minimum 150 SCT from the manual). The consistency is lower at ambient temp but he was in agreement that it will make it less likely to pop out the rear bearing seal when using the ez lube system. The only issue he said might be if you were using this in a hi speed situation where the bearings are out in the open which might cause the grease to fling off. Even than though if that were the case the grease that lippert specified is thinner at 40 degrees C which would fling faster.
The main things as far as im concerned:
Dropping point
viscosity index
viscosity at 40C and 100C
the megaplex XD5 exceeded all of these and has the added 5% moly which will further lubricate.
