There was a lot of comparison of temperatures between owners, with some owners becoming concerned that their trucks were different than others. The gauges are not all that accurate, so these comparisons didn't mean very much anyway, but they did cause concern among owners.

Because of this (and other reasons), AMG changed the gauges in the later trucks so that no "actual numbers" were on the gauges.

The most important thing is to get accustomed to how your truck behaves, and watch for changes in that behavior. As long as your temperature reaches a steady level, and only goes above that when the engine is working hard, you have little to worry about as far as "engine temperatures" are concerned.

Dave B.