ICE cars need to have their engine oil changed every few thousand miles, due to exposing that oil to the burning temperatures in the cylinders (producing ash and acids, making the oil opaque and black). Failure to do so will cause sludging in the engine, which mostly affects the top end components. The coolant on these cars is pretty good these days. It doesn't need changing for several years. The transmission oil doesn't need changing unless a problem develops in the transmission. The pumpkin oil doesn't need changing unless it's being used for heavy duty or getting submerged in water (such as when launching a boat...something a Tesla can't do!).
Tesla cars also use oil and coolant. They also require changing, but the oil can last for years and the coolant even longer. The oil on a Tesla is like a transmission oil. The coolant is not designed to be changed easily.
Most EV's use liquid coolant for their batteries.
Maintenance on any vehicle mostly consists of cleaning it, rotating and changing out worn tires, body maintenance and repair, and of course refueling (or recharging) it.
What he fails to mention about maintenance beyond this is that EV's require maintenance work to be done at specialized shops or the dealer. EXPENSIVE!
Maintenance on an ICE car can be done by any reasonably competent mechanic (I do all my own work on my cars).
Apparently he has this thing about justifying spending thousands of more dollars on a car to avoid buying a few quarts of oil every year or so. Another example of his false economy. He is spending dollars to save pennies AND adding the inconvenience of lengthy 'refueling' times AND adding the inability to tow anything significant, if at all.