I’m a mechanic with more than 55 years experience – here’s my tip to make your AC blow twice as cold

user explained: "Today, Im going to speak about an air-con problem and how you can fix it.

"The passenger side is blowing cold air, but the driver side is not blowing cold air.

"Since most cars have the evaporator on the passenger side if you're running low on refrigerant, the passenger side can still blow somewhat cool, but by the time it makes it over to the driver's side, it's not cool anymore.

"So if you know how to use AC gauges, you can hook them up to see if you're low on refrigerant.

"And if you are, you can add some. And if you don't, you can just pay a mechanic to check. It doesn't take more than five minutes."

Scotty Kilmer has also warned drivers that some mechanics will try to scam them when they are low on refrigerant.

He added: "They'll say, oh wow, your compressor is leaking. You need to buy one before you spend a whole bunch of money.

"If it's been years or if the system has never had any refrigerant, add it first. I've done that on cars, and sometimes they have last five or six years before they stop working again."

The video has gone viral on YouTube with over two million views and 1,472 comments.

Most users were blown away after discovering this amazing hack that would save them thousands in AC repairs.

One said: "Scotty Kilmer has essentially given the world a free college course. Thank you, Scotty, you are changing lives!"

Another said: "Scotty, I'm not a car person, but I love your videos. Always learning something new!"

A third pointed out: "Finally, a person who ACTUALLY explained how dual-zone climate control systems work!!! Great vid, Scotty!"

This comes after a car expert revealed a little-known tip to improve your car's fuel economy this summer - and it could save you hundreds of pounds.

Plus, drivers are stunned after discovering a genius hack to clean awkward spots in their car, and people say it's a game changer.