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.
On April 29, Associated Equipment Distributors (AED) hosted a Lobby Day at the State Capitol in Albany, New York, to educate lawmakers about the impact the Farm Equipment Fair Repair Act will have on the state’s equipment dealers.
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.