Just found this. I have several comments, 1st- No axle stands! if you don't have them put the spare wheel under one front wheel, jack seals can fail suddenly. 2nd - Use a cheap, thicker grade of oil such as a mineral 15W-50 or 20W-50 to allow for the reduction in viscosity caused by the Diesel fuel. 3rd- IMPORTANT. Premix the Diesel with the oil before you add it to the engine. 4th- Don't use 50/50 mix. The resulting oil/fuel mix will be too thin to lubricate bearings with some wear in them, and a worn oil pump will not generate enough pressure. 20% Diesel to 80% oil is more than sufficient, as long as you use a thick oil, even 10%- 90% works OK, see 2nd point above. Also this means you don't need to flush the engine again with pure oil as there will be hardly any residual diesel in the engine after draining the flushing mixture. Just add the new oil (after changing the filter, see 6th point). 5th- If you have to use a 5W30 oil only put 10% Diesel in, it still works. 6th- After draining the old oil, replace the oil filter then run the flush which will fill the new filter with a lot of flushed gunk. Then dump this, drain the flushing oil and put another new filter in. How do I know? well I have done this procedure many times and got it wrong once which resulted in ruined big ends and main bearings in an older engine. Lesson learned!

Best way to clean the gunk out of a poorly maintained vehicle. I did this back in 2010 on my car and it worked beautifully. Oil pressure went up, idle went back to normal and the engine spun much freely. Great video

Diesel fuel is safer than kerosene to flush an engine with, Diesel fuel has paraffin wax added to lubricate the injection pump and injectors, so it is less likely to cause a spun bearing or other failure due to the extremely thin fluid.

When I lived back in the Dominican Republic 🇩🇴 I worked at a gas station ⛽️. I used to change car oil and motorcycle 🏍 oil A lot of the guys always asked me to pour diesel into their bikes engine, which I did, the ran it for about a min or two. Flushed it out then put oil. The engine was always kept nice and clean. I don’t remember ever doing on cars tho’ 🚗. What I was asked to do was to wipe that chasis underneath the cars with Diesel to prevent corrosion, the cars I did that to never had any corrosion and it the chasis was always nice and clean.

I’ve used Diesel for YEARS and I started using it on a 4.0L Jeep Laredo with 327K original miles and after a flush that motor felt BRAND NEW , I did this every 3 oil changes … I am TRUE BELIEVER IN DIESEL FLUSH!!!!! Do it!!! Do it!!

JACK STANDS!!!!!!!!!!!!!!!!!!!

I use to use 2ltrs of diesel in my 4age Toyota engine but only run it for around 2 minutes, then flush again with oil...works brilliant!

I wouldn't worry too much about sludge getting in the oil galleries. The oil filter will catch most of that. Most of the sludge tends to build up in the cylinder head(s), and drops into the pan. As long as the pickup tube screen doesn't become clogged, it will just harmlessly go into the oil filter. The oil pump gears do a very good job 'grinding' it up. Watch your oil pressure closely. In some engines, the pressure sender is BEFORE the oil filter, and you may see an unusually high oil pressure at idle. If the pressure jumps, time for a new filter. Others, it is AFTER the filter, and if you see a big drop in pressure, time to replace the filter.

I do the exact same thing with my car , use a flush for 15-20 min , use a cheaper oil as a secondary flush , then use fully synthetic 5w 30 .

This was commonly used on long haul diesel trucks in the 50s and 60s to clean the engines before oil changes, have heard of trucks doing 800k to a million miles using this method.

Also, my dad was a master mechanic and I remember him telling me how they did something similar to this back in the 50's. Oil was sludgier back then. Not sure I'd be willing to use the diesel in either of my vehicles. I have added some Sea Foam though, and Marvel Mystery Oil to the crankcase before oil changes though. But I normally use Mobil 1 full synthetic, and oil stays clean for the first 500 miles IIRC.

On your initial comparison, you also forgot that the oil filter probably had quite a bit of the old oil in it, which combined with remaining oil from the first drain, dirtied it up. Nice video.

Your videos are good.

Joe m thank you for your sincere suggestion i got your point,but this knocking sound is on and off its not apears when start car morning its apears when temperature reaches on normal when stop on signa or any where but when i accelerate its goes and also not apear while drive fast,thats why i thought parhaps this flushing should work.

all the engine flush will be worthless if the car falls on you please next time use jack stand

Hello Junky-DIY-guy, Thanks for your Video very informative, I do basically the same think but a little more elaborate, I do that only every two years or so, I do the following: a) Drain the old Oil b) Put a cheap Oil filter (Change the Oil filter for a new cheap one). c) put a mix of 50% Kerosene and 50% of a cheap Oil d) Let engine run for 10 to 15 Minutes e) Drain the Kerosene and Oil Mix f) Put a cheap Oil g) run the engine again for 10 or 15 Minutes h) Drain the Cheap Oil i) Change the Cheap Oil filter to a new GOOD QUALITY Filter j) Put a good Synthetic oil The idea of step "F" is to drain as much as the kerosene as possible and leave the engine with as much clean oil as possible, I been doing this to my cars since my very first car (that was more than 38 years ago) Never had a problem and my engine has last for more than 200K Miles W/O problem, Obviously I try to change the Oil religiously and do my best to keep my cars with good maintenance, Also for the people that say it will eat the seals of the engine, that is not true , If Gas-Oil (Diesel) or Kerosene with do that to our engines, then our engine will be gone LONG TIME AGO. BTW: For your security next time use car stands, an JACK is not secure, ask me how I know. Again thanks for your efforts.

here in the USA diesel fuel comes in a few different colors yellow,green, blue, red. mostly the yellow is bio diesel. red is for off road died fuel for heating oil and such

Did you loose oil pressure during the flushing

Bravo...!

it would be very very unlucky if this caused a problem especially when all the oil drains back into the sump and goes through the filter to re lube the the engine my only concern is the engine bearings but at idle and not under load they should be fine .. and he is totally right your engine will sound like and run like new if nothing has been damaged by the sludge

1) Someone else already mentioned the use of jack stands! or you could use wood or stone blocks with the jack still in place as a back up. 2) Never add diesel separately as it is too thin and you washed the oil off the bearings and lifters. when you start the engine, you will not have a consistent oil to diesel ratio until it fully mixes during the cycles through the engine. So pre-mix your oil and diesel and then add to the engine! 3) Did your Mother give you a beating for messing up the driveway and table for your experiments?

5000kms range then oil change..thats when its used often (start n go) when im not using car often i space it up to 8000kms before oil change...works for me👌

You should of took a pic of the engine (under oil cap) If that was my car i would use a cheaper oil and flush that out again.I use Magnatec myself it's great oil plus i do little miles,stop/start with town use.Good video thou,cheers.

In a high km used Audi a4 car that was neglected from the previous owner, i drained the oil and put inside the engine 4 liters of diesel. It worked perfectly for me. I had zero problems.

From the very start of the video, you sounded like the rapper of the intro music. You were narrating actually.

Great video, but please use axle stands for safety when jacking up your vehicle....

the music over voice is VERY ANNOYING

toyota engines were known to have a sludge issue. the pcv system clogs frequently and therefor yields significant carbon deposits in the oil. I would actually do this every oil change just to be sure. if you are only idling the vehicle and only running it for 20min...there should be no issue...unless there is already an issue. seafoam openly says to do this with their product. they say you can't add too much. that's what I did and I had to replace an engine because, and I opened up the engine, their were significant deposits of carbon flakes that clogged the oil passages.

Ur car driven 2,16,000 something kilometersBut it was looking new from the under neeth.Any reason? M I right ? Is it 2,16,000+++???

Be careful doing this because the diesel mixture will thin out your oil i suggest getting thicker oil than you usually use and letting that work itself around

With diesel engines, some of them allow for up to 10% diesel in the oil due to DPF regens. I'd be a little worried about the oil being too thin by putting any more than that into any engine, particularly with the thin oils that go in them. Probably safer to put 10% diesel in a week before an oil change.

Great work..... I can see additive reps on full chat lol

Use new filter BEFORE flush & a new one at the end

Uncle Ed told me that grandpa has been doing that as long as he could remember, Uncle Ed would be a 100+ years old this year, so this ain't new

hi Junky DIY Guy, your demo is good, but, my question is, would that be possible to perform such procedure in a 2.5 direct injection engines? thanks in advance.

my grandpa bought a old work truck that was severely abused and mistreated and not well maintained first time i changed the oil for him when he first got it it was so black and sludged up from the owner never changing the oil the truck was white smoking really bad on startup and would do so till about 5 minutes after startup so i had enough room to add 3 quarts of red dyed diesel and flush it for about 35 minutes at idle flushed it then flushed all the diesel out with fresh oil then changed the oil again 5 quarts of Shell Rotella 10W-30 with 1 quart of Lucas Oil stabilizer and it’s ran flawlessly with no problems ever since with no more white smoking 🙂👍👍

Insteed of adding some new oil with desiel, can we add me some grease with desiel for flush, plz reply

My buddy does this, now two of his cars have oil leaks in the rear main seal. Wonder why.

Just use Heavy duty extreme Diesel Flush by wynns, Before changing oil, and then run Nitro+diesel mix from Shell for a couple of days - 1 week, so you can clean your injectors/ fuel system. Then Thats about a nice healthy diesel.

actually had the same type fail on me when i changed the tires, went slow tho, but still. Safety first dude.

Axle stands with a jack. I have metal ramps as well you can drive up them. If the ground is not that stable ramps have a better footprint. Being crushed to death and feeling the air leaving leaving your lungs and not being able to breathe in while in pain is not a good way to go. Stop and think, they are cheap enough. Or you could also sit with legs under the car when it falls of the jack it will screw your legs up for life. Think is it safe?

Thank you for sharing this video. When the sludge breaks loose, can it cause damage to the engine as it's floating around? Or, does the sludge break down to a harmless particle size from getting washed off from the diesel and cause no damage?

Junky dya guy thank you for such a useful video i like it very much and i am going to do with my bull shit cheavy lumina ls 2006 i hope it will work and p8nging knocking sounds of lifters will disapear.

Did you also get cold start blue smoke form your Aurion ? Apparently that's a very common issue on poorly maintained car.

Will this clear out a blockage and cause my oil pressure to go down? Because it's way up and over right now

I have used Fuel Oil before to clean gunk trapped in the crankcase years ago. It definitely works but can peel away lots in a short time. I prefer products like Rislone or just use a lighter grade of oil. Ive used ATF as well. Almost a cupful a day before changing the oil (5l crankcase)

Nary a jack stand in sight. He's using safety force fields no doubt.

At some point in time (probably before flushing) u should have dropped your oil pan and throughly cleaned any metal or dirt out of it first.

I did the same thing using petrol and drove the car for a few days. Drained it and put fresh oil and changed it twice a year forever after. The oil was golden for three months. Sold it after 180,000 additional trouble free miles.

just use a little ( 1/2 qt ) of atf with every oil change. keeps your engine spotlessly clean, keeps lifters cleaned out , prevents rings from seizing and doesn't eat your seals.

You could be the next home DIY car maintenance statistic of a failed trolley jack for not using any axle stands. I've seem a guys life less crushed body after he climbed under his pride and joy for just a minute (so, it was assumed, chose not to put up any kind of backup safety supports). His trolley jack was less than a year old from purchase and hadn't been much used. It's possible he hadn't fully closed it when he divided under the vehicle and it suddenly just bled down on it's hydraulics without any warning... Working alone wasn't a good idea either.

Look at channel project farm, he hears the oil and it gets dark pretty fast...

Wait...This dude got under a car held up by only a floor jack? Scary.

Simply changing your oil every 3,000 miles like you should will prevent any sludge build up. If you bought a beater cheap, and it is sludged up, you have very little to lose by trying this, with either diesel or kerosene, since you are looking at the possibility of having to get a rebuilt engine anyway. Don't use Fram filters, and if you have a GM vehicle with Dexkill in it, it's probably already destroyed the engine anyway, making the oil sludge a moot point.

I’ve heard using ATF, diesel and regular engine oil together to flush your engine is much safer than this but I’m really not sure can anyone relate?

If you have an engine that has loads of sludge and varnish, and it's never been flushed.. Don't Flush! If you have low millage vehicle, that you flush once a year, or even every oil change.. No Problem. There is an issue with using diesel to flush your engine.. Diesel can be absorbed by some gaskets, as the gasket dries it can shrink, causing leaks. The very best way to flush your engine, is with fresh new oil.

Just so you know bro. the round bit on the oil filter cap does come off so you dont make a horrid mess when removing it

70/30 is safer in my opinion works just as good but helps with clearances

Hi! first of all I am happy to find you. I am using a Nissan Pickup truck. it has a 2.4L petrol engine with 4 cylinders. The oil starts to get a black colour just after 1000km of use. the oil I'm using is for 5000km use. if I use it until 5000km it gets really black as a diesel used engine oil. I asked some mechanics they said I should try an engine oil flush. My father told me to remove the used oil and to fill the engine with diesel. I was little scared to follow his advice as he was doing this like 30 years ago on some buses he was driving. I will sure try your method. I am really curious how the flush will work and what results I will get. thanks for the video

I didn't even know donald duck could drive.

Every engine eventually gets sluge carbon deposets . very small metal flakes . rubber or seals that over hang in the engine espesely silicone used for gaskets shit happens yet useing deseil or karosein is not good use an aditive that will thin the oil and sludge then change the oil

Hello Junky-DIY-guy, great video , and amazing background music, by the way what is music name?

You risk blocking up the oil pickup.

Oil flushers seldom mention the plugged old oil filter. A new filter will help grab crud without a bypass crud dition. On my very old used cars a flush. Maybe a pan flush and oil sucker screen replacement. Never been bad for me to flush an engine!

i am now replacing the same engine that you have because the previous owner never changed the oil and i tried to flush it. just like you said.

BTW, check out Project Farm and his Bestline video. kzfaq.info/get/bejne/o56KfrB0y6fZlWg.html

Why didn't you lower the car to sit on its own to get the last little bit out? Like the last sip in a glass

BIODIESEL WORKS EVEN BETTER----GREAT SOLVENT--

Can I do this with my Honda 125cc bike?

Don't use Pennzoil!!

At the risk of sounding extremely redundant seeing as how nearly every comment is someone telling you to use jack stands, I'm willing to make that sacrifice and I too am going to eco their advice, an engine clean enough to eat dinner from isn't going to profit a dead man, the seals on a jack blow out all the time, people walking by can trip over the jack handle, or children playing nearby can release the jack, my point is this, life has unexpected moments and when your life is solely dependant on everything going according to plan without any fail-safes in place you could easily pay for your oil change with your life be safe when working underneath a vehicle even if you can bench press 500 pounds you're not going to lift that car off of your chest if it falls, always use cinder blocks underneath the tires or buy jack stands find something to create a barrier between you and the car besides the jack just in case the jack fails or the unexpected happens.

I wonder if ATF would work as a good substitute for diesel since it has a lot of detergents in it.

Great video, I was thinking in doing by myself because I see engine is dirty inside. Diesel is a paraffinic compound same as engine oil. NO problem at all when mixing. Also I see a LandRover technician doing a expertise diagnostic and he flushed the engine with diesel but only 2 or 3 minutes.

What should be done with the diesel sludge? Is there a proper way to dispose of it? Can I use it for something nifty at home?

No jackstands!! 🤨

doesnt anybody try and keep the oil off off the cement anymore

does it work on other cars? I bought a 98 Mercedes e320 do you think I should do a flush?

jack stands.

and this has nothing to do with a cold start. cold starts are mostly feul related

Not too sure if he said "brain vlog" or "Drain plug". 🤖

I also clean my bike engine with diesel..

ur engine rattle because you use 20w u need 40w or 35 w

Pour the oil side on (bottle) Less chance of getting less air in the engine.

I use Marvels mystery oil in my semi just before oil change...i have 1.3 million miles an no blow by or bad oil consumption!

Puff of smoke when you get on the gas, don't feel like the lubrication in that diesel fuel did your engine just mint, she gonna need a re-bulid

No jack stands.. Not safety minded, hm?

Please Use axle stand ! Use axle stand! Use axle stand! Dangerous Job.

I drain about 3qt of oil out of the motor , then add 3qts of diesel to my crankcase and start it for about 10mins 15, if way past oil change..man you’ll be surprised how much crap comes out!!

IF I MAY ASK WHAT WILL HAPPENED IF I USE ONLY THE DIESEL?

Diesel can cause lots of wear. Only really useful as a flush for a car you don’t care about. Good chance of just removing kms from the life of the bearings.

Remember if you're running a 4X4 you have to get off road diesel!!! Also don't forget to change your blinker and headlight tail light fluid. Depending on the season change the air in your tires from either summer or winter air because you don't want them to overheat or freeze!! Don't forget proper servicing of your vehicle ensures long lasting life!!

I think i will do this on my old mercedes. Then filter all the flushed oil/diesel and top up my fuel tank with it😀👍

I use diesel as an engine oil flush agent, but not 100% diesel.. it would be 70% diesel and 30% fresh oil had a done it on Small Gasoline Engined Water Pumps then Motorcycles then Cars! It works every time 🤷🏻‍♂️ never encountered a catastrophic breakdown.. just drain the oil put the 70-30 mix in run the engine for about 5-10 minutes (with the engine already warmed up) give it a few revs for motorcycles it would be great if you would operate the clutch from time to time to also clean the clutch pads then drain it again for a few hours.. then pour the fresh oil in 🤷🏻‍♂️

Its no different than kerosene, and mechanics have done that since 1920. You can also subtract 1 qt. Of oil and put chrysler ATF in it for 15 min. then change the oil. Chrysler ATF has the most detergent. LS engines are having problems with the pressure valve in the oil pump sticking due to tolerances being too tight from the factory, so I wouldnt do it on a newer chevy.

never do this one just reguler change the oil

Bad idea, and by the way engine oil is supposed to get dirty, that's one of its main jobs. If you're concerned about how dirty your engine is, change your oil more often and/or buy better filters.

is it safe to flush with diesel ?

It's a brand new car they shouldn't need an engine flush and besides the diesel fuel eats away gaskets and seals makes them leak

Please you Axel stands!

Recommendation: Synthetic ATF 1/2 Synthetic 10w30 1/2 Let motor run on high idle 1200rpm 40 to 50 min