At least you have a sig...most people don't which is annoying...it could save so many after questions...its IMO impertive and should be forum law to have one so when someone posts, you know quite ofter why they are doing the things they do with out asking why.
Except they don't show on Tapatalk, so you'll still get asked.
In that vein, it doesn't hurt to add a brief comment about the truck related to what you're doing/asking.
"What oil for a 2020 Cummins?" etc.