Ive been in the trade of car repairs, and trust me the level of stupidity is collosal, let me tell you why. Lack of education and common sense - for them a kid telling them that their new flashy car with an LE engine requires a specific oil - they call this BS because their ustaad buzurg mohtaram mechanic told their father, grandfather, brother, family freinds that tees chaalis ka mobilaail ya zyada se zyada bees pachaas mobilaail set rehta hai. These same idiot ullu ke patthay ustaad mechanics also recommended
C aail (gear oil) is never changed, and if ever required get some used oil from the scrapyard gearboxes.
these same idiots also recommend never to change ATF as the aatometick ghaer will die.
I was once given a corolla automatic trans for repair, it was completely dead when I opened it up, the steel plates had blued, the drum bearings and bushes were shot, the clutch friction plates were flaking off. Guess why, the mechanic did not have ATF so he mixed kerosene in gear oil and put it in. This same weirdo mechanic once also screwed up a honda civic manual transmission casing seals and bearings by trying to use the same sort of thicker mix for manual transmission. (honda MTF is 10W30 engine oil)
Try explaining a general person or even mechanic in Pakistan that his honda transmission takes ENGINE OIL for the gear, the person will probably cuss you out. In short I had no time or patience to fix stupid, because I cannot. if someone wanted a full service package on such a car I simply drained and filled 2.5 litres of Delo 400 engine oil in the gearbox, I would mention it on the service bill but they were usually WOWED by the slick smooth buttery shift of the gear lever and also a bit free running.
Still - I hated dealing with idiots - my answer to them was "thankyou - I do not want to service your POS car"\
In short - these people believe in emotion rather than logic, they would die on "shaksiyat parasti" rather than believe on science and logic - Its not our duty to educate them if they whole heartidly want to jump into darkness.