Will Synthetic Motor Oil Cause Engine Seal Leaks? Let's find out!

People should take notes on how he does videos. Straight and to the point, no clickbait or unnecessary talking to fill time. Thank you.

The only true YouTuber who doesn’t click bait actually sees people’s comments ideas and does them. It may take him awhile but he does see them and comments on them thanks for being such a great YouTuber!

I think the theory of it leaking is because a leak already exists, but the conventional oil already sludges up over time and sealed the leak. Then by adding synthetic, it penetrates and cleans out that area and therefore may start to leak again.

The amount of work you put into you're videos makes you a legend and you deserve more then you get!

Can we just appreciate how he replies to 95 percent off comments at this amount of subscribers? Edit -how many likes lol

After working for over 40 years on all types of vehicles and support equipment (generators and air compressors) I've learned that synthetic oil use has caused leaks to start on equipment but it is not because the oil damages any component or seals; the reason these leaks start is that synthetic oils have a higher detergent content and they clean up all the dried up gunk between the seals and the shafts. these deposits are built up over years of use and they get caked on to the seals, once the synthetic oil cleans this mess up the hardened seals are not able to keep the oil in the assemblies. So the answer is NO, synthetic oil does not cause leaks, worn seals/shafts do.

This is hands down the best channel I've seen for practical, concise product analysis.

With all you've done to those engines during every episode, you make engine work look a lot more simple and a lot less intimidating than i originally thought. You explain things very well

I think I speak for most people when I say it's very satisfying watching your work in the field

I like how you popped a wheelie in the tractor

I don't often watch with captions, but even your captions are thorough and detailed. Thanks for making this show. You're doing great.

I am astonished at the production quality of these videos. What a well done job.

"I'm going to put the filter media in a press to squeeze the oil out" Expects a professional hydraulic press of some sort ... it's a vice with a couple 2x4's... Keeping it real. This is why I subscribed!

What I have been told is that Synthetic oil doesn’t attack the engine seals, but instead it cleans up any engine sludge which been helping poor seals from leaking. Great video!

Your tractor is in Great shape for its age. You really take care of your equipment. Thank you for all your time and effort in these videos. We all appreciate you!

This man puts SO much work into these videos!!

Drone footage: Thumbs-up! On a side note, wouldn't you love to be friends with this guy?

I'm amazed you have a 40 year old diesel that doesn't leak oil.

Your shear enthusiasm is so inspiring. Thank you so much for your channel!

As everyone is saying - excellent, instructive videos and experiments with no fluff or wasted time. Good work. (I've converted a dozen cars and motorcycles to synthetic at low to very high mileages and no leaks that weren't already there)