“own a diesel pickup”
I have an F-150 gas. I wonder how hard it would be to have an oil injector in the exhaust manifold to produce the needed smoke to combat GW? You know I just feel I need to keep-up-with-the-Jones’.
A kid I knew years ago in high school had a small pump to pump oil into his carburetor at the flip of a switch. A "smoke screen" ala James Bond.
Definitely a man ahead of his time.
Install a second windshield-washer tank w/pump under your hood, routing a hose to a point just before the throttle body.
Use a light weight oil (maybe even cooking oil), and just experiment with oil weight/engine speed/throttle setting combos for maximum effect.
Some diesel tractors/trucks come with a device that sprays ether into the intake for cold morning starts. One of those, with a can of WD-40 or carb cleaner produces tons of white smoke. Check with a tractor dealer for one of these things. I know that International Harvester had them on their tractors back in the 60’s and 70’s.
NAPA may be a good try, too, they have lots of “fun” stuff....