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What you see at the bottom of a 5 quart jug of Penzoil full synthetic anything after you perform an oil change will tell you whether or not you'd want to use Penzoil products agian. The last three oil changes I did on my own vehicles I noticed a fine black silt in the bottom of the jugs. Putting the cap back on the jug immediately after doing the service on the last two go arounds I let the empty jugs sit for a week then check the content after it has settled. The fine particulate I notice in the little bit of oil that settles is quite annoying.

While this would be helpful information to have, aren't you double dipping on this transaction? You are basically starting a database from a potentially huge pool of people with all different kinds of engines using different kinds of oils. This would be an incredibly lucrative database if sold to oil manufacturers.

I just finished watching a video on Daves Auto Center and he got the chance to talk to one of the guys who specializes (and creates a lot of formulas) in oil and he recommended to put additives into your oil and fuel based on where you live. The US doesn’t use enough additives so its highly recommended here. But also do it correctly. Read the bottle.

Do you have a fuel injector cleaner gas additive video?

Im an automobile engineer, the best oil additive is xado maximum and ceratec is also good too.

I don't know, but I would find it very hard to shake my car when it's in the sump...! What a F'n stupid question... really. The "can't you just shake it back up"... people, don't understand BASIC chemistry.... They are also the Trump supporting, lowly educated , flat earth believer, chemtrail, Aliens everywhere... people who give this world most of it's current problems.

IN terms of old motor oil being bad for the engine, it still might have a good use in terms of using the old/expired oil on garden hand tool wooden handlers. For example using the old oil to preserver wooden handles of shovels, rakes, picks etc. or using the old/expired oil to preserver wood fences. I heard this from Google and from YouTune videos. It actually works and it a good cost effective alternative. By the way, great work with your video and tests... keep up the great work mate!

Oil deceased dinosaur juice , but seriously yes fuel injector cleaners that's a given, changing the quality and structure of oil in a motor the heart of ones vehicle? Just change it and the filter at regular intervals tis not rocket science good people. May I say flushing with a de mucker before an oil change yes but for the average driver don't dilute or play with the life blood of the motor.

Yes absolutely interested in the history of oil. Great job. Thank you. 🏎🛞⛽️👍🏻😉

I might also add, love your bottle funnel, it's the same what I have and works a mint... also store it the same way as mentioned... clean it before each us (same as cleaning around the oil hole in the rocker cover on each fill). I also want to add a non comparable comparison but somewhat similar... when using a pressure washer, it is best to run water through the pressure wand before turning on the pressure washer on. This gets rid of air bubbles which can damage the pump. Somewhat similar to the 'filling the oil filter' as supposed to not filling an oil filter.

You got my thumbs up on all videos I've watched and a subscribe too. There are many things I like about your videos, the filming, the editing, the amount of time taken to create each test, oil lab tests and more importantly using science, proper testings of oil done by independant lab to prove speculations right or wrong. Keep up the good work mate. As a side note, hatters gonna hate (can't change a mules way of doing things) and people who were previously in doubt or did not know about this, have proof and know how to do it right.

I would like to see prolube.

With an engine with VVT solenoids I can absolutely confirm Turbo Maxx works. I drive my vehicles to death, but I am OCD about maintenance, so that's usually over 300,000 miles. Right now my '02 is at 250,000 and running perfectly.

I recently purchased the new Valvoline Restore and Protect to put in my 2010 Sierra 5.3 that just reached 100k. I looked through your videos on your pain page, but I didn't see a video on it. Just wondering what your thoughts are on it. It is touted as being a cleaning oil, and the label states it muse be used for at least three oil changes to see best results. Again, just wondering what you think about it.

Seafoam worked for me... idk how but it just works with a slight knocking sound

You did not even tip the bottle upside down how did you shake anything😮

I' m wondering how Bestline would stack up?

Claiming you should not fill an oil filter when you can, is not much different to flat earth hypothesis.... it stark raving stupid.

Non detergent oils are great for non-engine applications. Think air compressors and the like. Especially scba tanks which are used for breathing air

This is a NOTHING Question... If you can fill because the filter is upside down, or there is a housing tat can be filled... do so... if the filter cannot be filled, don't worry. If you are really worried and have a modern car, use the flat throttle method to turn your injectors off stopping the car from starting for a dozen cranks if you want to prime the oil systems first. The one thing no one should ever do... in other words DO NOT... is to rev the engine for a handful of seconds after the first engine start after an oil change, unless you have absolutely primed the whole oil system.

I would be very interested in your opinion of the "Engine restorer" product from Ametech. I have used it to some success in the past to reduce the signs of compression loss in several engines, but I have only ever stripped down one of those engines afterward, and that was a rotary engine so a rather uncommon application. If you're interested in doing so, I believe your analysis and investigation would be quite enlightening.

Geek Alert ⚠️ but in a good way... 😊 Excellent video, liked, I just bought 2024 Honda Civic Sport Hatchback, 6-speed manual, NA 2.0 liter, Lunar Silver 3 weeks ago, going to use your tips..! Thank you..! Blessings from Phoenix..! 🏜

I've tried many brands of oil and penzoil is the worst.

Love this channel!!!

Because it has handles in 2 different locations. 😂

This is like Steve-O and a Project Farm combined

I wonder if that lab guy is just as moot on the inside or if he's exploding with enthusiasm inside... 😂

Okay….yah the only additives I ever use are marvel mystery oil, Lucas, and reseal 201 and it’s only when an engine has sat for a long time for first couple of start ups and then I’ve always flushed that oil after a handful of hours of running the engine because I assumed it was diluting the base oil to a certain degree……interesting to see this back that hunch up. I still don’t see a big reason not to use those particular additives for specific reasons such as helping rings get set correctly after sitting for a long time, if the only downside is that it shortens the life of the base oil…….which yah….if you are working on a vehicle and you think you need additives, it makes sense that you definitely shouldn’t be planning to run oil for over 6,000 miles in that engine.

It still makes me laugh at american's guying oil in quarts....

This is the best piece of advice this channel has given. But to support the early 500 mile, or maybe even up to 1000 miles max... this early oil change interval, should be followed up with all oil changes being at 5000 miles for people who do normal start stop commuting style driving. Long interval service periods are simply there to save the manufacturer costs.

Marvel mystery oil is great for old engines thats sat for a long time. Pull the plugs, pour some into the cylinders. It helps things start up smoothly when rings or cylinder walls may have corrosion, or at the least are bone dry. Thats the only way I use it. Kerosene and atf mix works too. With both, be sure to change the oil as soon as you get things running good.

I never used Sea-foam in the oil because I didn't need to clean deposits from my engine and also didn't want to thin my oil out. Sea-foam is very low viscosity stuff. Although, I did have problems with my injected high performance motorcycle building up a sludge in the intake ports and throttle plates and deposits on the intake valves. The stuff was so thick and sticky that the throttle would stay open when you release the throttle grip. That's a little scary when you have a 175 hp motorcycle. Anyway, I started using Sea-foam in the fuel, after about a month I removed the air box and could look straight down the throttle bores and see that everything below the injector in the direct spray of fuel was spotless and even the throttle plates and shafts were clean as can be. So I understand exactly what he was saying about additives for the fuel. I'm a believer in Sea-foam for that reason but never took much stock in the claims they make of it being a cure all, fuel treatment, oil treatment, and I think they even claim it works in transmissions.

I am curious: Is the BG MOA also bad to run in the engine oil?

A comparison of PUP to Quaker State synthetic would be interesting.

Totally agree. My wife thought I was crazy when I changed her 4Runner oil @1500 miles for 1st change. I have always used mobil1 but I am wondering if that is the best product. I recently purchased a new gmc sierra and plan to change the 1st around 500. Our vehicles now use the same oil weight 0w20. I was going to use the Mobil 1 truck and suv 0w20 for both since the GM requires Dexos1 gen3 but wondering if there is a better option. I would really appreciate your advice. Any suggestions?? By the way, fascinating content on your channel.

The PUP is a very good oil, even reduces some of the hemi tick in a 5.7.

Great video. I've used Seafoam and Gumout occasionally in the oil, but only ran it for about 50 miles and then changed the oil. Guess I'll just stick to adding it to the gas.

in your history of jibrication be sure to include Whale and castor bean oils.

Did he use the fuel stabilizer sea foam...

My habit has been 1st oil change at 1,000 miles no matter the vehicle... and every 3,000 miles thereafter. My rockers, cam, tensioners etc have always looked good without any varnish. Oil by design holds particles in suspension and I refuse to trust the intervals - especially for my 2022 F150 work truck that tows daily. The wifes Subaru gets it every 6 months whether she likes it or not LOL....... but then again she drives a couple thousand miles per year and runs ethanol free fuel unless we have to travel to visit her family in California.

I have question. I PUT Pennzoil Platinum Euro 5w30 in my new 2023 Nissan rogue 1.5 variable compression turbo charged engine. Is this ok? Is it a better choice or poor choice?

Thanks for the information, it helps me a lot. I was about to buy an additive for my crv

Well, i see many experts, some say you should prefill it, they've done it all the time, others that don't. I am not an expert, so should I prefill the new filter, or not? I, recommended by a mechanic, always fill it before install it, but I don't know how has it affected the engine or not. I have a 2006 Mitsubishi. Also, is it good to use natural oil or the synthetic? Thanks.

Seafoam is a cleaner. You're supposed to use it right before an oil change.

After a 6 year DIY oil change hiatus, I'm getting back in to changing my own oil. Just wanted to say I love your channel.

REVX additive is very effective for 6.0 ford diesels

I'm just a youtube trained DIY-er, and while I always lubed up the gasket and put a little bit of oil in the filter, I will start filling the entire filter from now on. Never debated it, but just never thought to fill it more like as the old filter comes out. Makes sense after watching the video and reading all these comments now, but never thought about it before. Thanks!

In all fairness to Liqui Moly additives they are designed for German aluminum alloy blocks that don't run sleeves. They essentially in a way create an invisible cylinder sleeve between the rings, piston and aluminum alloy cylinder walls

So find a good oil, always use that same oil and these extended interval oil changes are destroying engines; 3-5k mile oil changes.

I put Lucas stable mix in my stuff all the time but i only ad 2 quarts by 6 quarts of 0w-20. Always have for more than 10 years and change every 5000 miles. I push the fuck out of that motor well over 5k rpms, no problems