Bill, That Delo ESI looks good.
I did some checking. Around N.Texas it's $22.00 a gallon, in a 3 gal case (smallest size available).
Asked for ESI. Is ESI(R) same stuff or different?

Did some more research. The Borat EP additive system in the Delo ESI is apparently causing some problems for OTR truckers. 'Borat'. when exposed to H2O, tends to crystalize and chew up seals!
This info came from a trucker that stopped using the Delo after developing leaks. I'm trying to get comfirmation from my contact at ArvinMeritor.
Bill, You seen or heard of this problem?

RJ

 

Great info guys, keep it flowing. I was about to put Rotella 75/140 in the axles, but now I'm thinking about using something else, although I'm in NM desert heat.

-Dustin-