Real Mechanic Reacts to Terrible Tiktok Car Advice

We hired real mechanics and asked them to break down good & bad car advice from Tiktok.

Huge thanks to our experts!! Sandro, Daniel & Angelina for sharing their expertise with us (and you!)

Real Mechanic Stuff is a brand new channel from your pals at Donut. We'll be featuring all kinds of automotive experts every week.

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[JHKartingUK]

everyone: "that's incredibly dangerous never do that"

sandro: "i did this monday actually"

[danielthemaniel]

Dropping a magnet into the finger tip of a latex glove is definitely a big brain move. Plus you can still get an MRI in the future if you don't get a magnet surgically implanted into your hand lol

[spencerreathaford]

Daniel straight up made Nolan uncomfortable 😂 “can I have a smell”

That’s a mechanic right there 😂

[Brennan]

The brake disc thing is legit. He's not drilling new holes or enlargening existing ones, he's running a drill through the hole to clear out the carbon deposits - helps restore some cooling efficiency. I've been doing this to motorcycle brakes for about 15 years as part of my pre-summer service for my bikes, and on my cars whenever I've installed new pads.

[beardedbehr]

I love how Sandro called them “zippy-ties”

[commonisekaihero]

As a warehouse worker, that forklift one was scary af

[XLRbg]

About the first hack with the cordless power tool battery - keep in mind cars use 12V batteries, while power tool batteries range range from 3 to 48V. Also, in general, car batteries are rated for much higher power draw (amperage) than cordless power tool batteries. If you have a significant mismatch between your car battery and your power tool battery, you do increase various risks. When it comes to things not working out while attempting this hack, best case is your tool's battery is too low voltage and the car still won't start. On the other end of the "this didn't go as planned" spectrum, you have:
* Car's battery "explodes" ie sprays acid on you, which is pretty terrible for your skin and if it gets in your eyes you'll most likely lose your vision permanently. The risk of that depends on various things, like the type of battery and whether it has Pressure Release Valve (if applicable), and whether it has any defects.
* The power tool's battery gets damaged from being overstrained, which can mean a fire at worst and it not holding much/any charge anymore at best.
* Bonus risk - the conductors between the two batteries are too thin and melt/catch fire/burn you (depending on what they are made of).

Batteries are pretty scarry when they go catastrophically wrong, I presume you've seen how much damage can be done even by a small 3.7V battery like the ones in the Galaxy Note 7... Or the 18650 batteries commonly used in e-cigs, plenty of videos online. Power tool and car batteries pack a lot more punch than a smartphone battery. If you'll be doing hacks with them in a pinch, I recommend you know exactly what you are doing and take some measures to protect yourself just in case... you never know when you'll draw the short straw.

[paulsheehan]

Sandro is cool af, so chill, so dry, so funny

[Bruhadlee]

As a window tinter, the “tint hack” absolutely doesn’t work. 😂

[albertpeugh]

“He has no friends”. Best line yet! 😂😂😂

[itzjoshyt]

Sandro needs to be a member in every video...we really feel his vibe

[wierdoslam]

The magnet fingers hack was my favorite of the bunch. Not only good for retrieving stuff, I bet it works for starting that one SOB of a bolt you can barely reach, and have to drop a dozen times before you get it started.

[ohwingman]

In the 70's and older guys who did body repairs like the one with packing tape were call paper hangers Instead of packing tape they would pack the whole with wet newspaper of metal door screen. Once the hole was backed up, they would use either papier-mâché or wet paper strips sometimes coated in wallpaper paste and then let it dry so it was firm. They then applied bondo and sanded it out for paint. These repairs would normally last until the first rainstorm when the paper got wet and the water would come through from the back and bubble the paint.

Another thing that was done was used on cars with rusted out rocker panels. The rocker was trimmed back so only the sill and inner rocker remained. The lower sill trim was removed and then they used drywall screws and attached a piece of 4 x 4 lumber in place. The 4 x 4 was ground to shape with an angle grinder with sanding disc's and then it was covered with bondo and painted. The sill trim covered up the top screw heads and the back of the rocker panel concealed the screws unless you got under the car. This repair could last for years before it was discovered.

[maxmotors]

Sandro is naturally funny and endearing, get this guy a show

[zanemarciniak]

Sandro is my favorite Donut reoccurring guest by far. Absolutely hilarious and well versed in his craft. I would love to work in his shop.

[jacobfarkas]

I like the three mechanics you have on this video. I hope you keep these 3. They all seem like they are very different from each other, but all really knowledgeable.

[andrewa]

As a long-time technician, one of my favorite diag tools for a squeaky belt is a bar of soap! Works just like the deodorant. If the squeak stops, you need a belt. If it doesn't, pull the belt and check your pulleys. Plus, the look on a customers face when you walk out and fix their car with a bar of soap is always worth the cost of bar soap!!

[loganbalcom]

Hold up, did we just gloss over the fact Jobe has a magnet implant

[ryanwolfe]

12:04 happened to a friend of my dad's back when he was in highschool. Guy was in a remote area, alone, and got pulled under the vehicle and dragged. He didn't make it. He told me about it first time I saw that hack come by on a feed and it was like watching him unlock a memory.

[jaxpoolboy]

Sandro is still my favorite mechanic. Dude keeps it real.