Every manufacturer has gone to great lengths to make sure you can't work on your equipment. It's why John Deere is being sued and investigated for its practices.
A June 10 news update from Bloomberg Law reported that a federal judge denied Deere & Co. its attempt to secure an early win in its lawsuit alleging the company has a tractor-repair monopoly.
www.farm-equipment.com
It's also why we don't have a dipstick or drain plug on the transmission for these trucks. Fer crissakes, i got a brand new 2500HD rig that's designed for work and I have no idea if it even has transmission fluid in it, nor does it have an external filter. GM can fuck right off along with the commies at JD.
I think for the most part people agree with you on many things. You've shared some good information. I think the disagreement is primarily with the fact it's sometimes delivered as absolute. I agree with you, the Range module is a good product and Amsoil is as well. I just like to give people a little grief once in a while.