In Korea:
"...Napalm was very effective against enemy personnel and as an antitank weapon. A hit anywhere within fifty feet of a T-34/85 tank was effective. ..."
By F-80s and F-86s using 100-gallon Nape tanks about 1/2 to 2/3 full.
"... Napalm, dropped from low altitude, was recognized as the most effective air weapon against tanks,..."
"...Since the US would not attack irrigation dikes in North Vietnam, the North Vietnamese exploited the situation by placing anti-aircraft sites atop or adjacent to dikes. The air defenses, both fixed and mobile, threatened US forces, and by degrading bombing accuracy against lawful targets led to greater incidental civilian casualties. The Johnson administration denied repeated requests for authorization to attack these air defense sites. When they were finally authorized for attack during Linebacker I, the targets were attacked with weapons that would minimize the risk of structural damage to the dikes. This was accomplished through the use of napalm, strafing, cluster munitions, and other antipersonnel weapons delivered by low altitude strike aircraft such as the F-4, A-6, A-7 and F-105...."
"...In the 1973 Arab-Israeli war, Moshe Dayan was nearly injured when an Egyptian helicopter dropped a napalm barrel near him at Adan's mobile command post on the east bank...."
Napalm has been used against AFVs since WW2, quite successfully. Flown and dropped from a number of source aircraft, but it appears the only combat drops of Nape by F-4 Phantoms on armored targets were the SEAD missions of days 3 and 4 of Linebacker I, targeting the mobile AAA units near Haiphong by F-4Js off Yankee Station. ( According to "Clashes: Air Combat over North Vietnam 1965-1972".) Assuming at least one hit, if not several, armored SA-2 control vans, armored 57mm and 85mm AAA truck mounted artillery were engaged with Napalm via F-4 Phantoms (along with the other planes noted.)
The USMC practices every Spring using Napalm against armored targets at Range 104 near Yuma Proving Grounds, during the WTI exercises. The targets are old M4 Sherman hulls set out in the impact areas along with some old Willys Jeep chassis. It's a heckuva show from Bravo Peak observation platform