This channel, besides being great examples of mechanics, is a fantastic example of customer service applicable anywhere you got customers. Dont promise what you cant deliver, keep to your word, communicate clearly and be honest even in bad situations. Love it!

Firstly i want to say im a big fan of your work. I am a workshop boss in the Netherlands. It is always a pleasure to watch your work and insight of things. 18 years working as a mechanic im learning everyday day and man i am happy to find a channel that teaches. Keep up the work.

I've learned more about engines in 14 minutes than in the last 15 years of scrolling on KZfaq. Thanks Dave

Please consider changing the rocker arms - if he has the old ones (part number 06M) they can lead to a catastrophic failure. There are new revised ones (part number 0P2).

You know you’re old school when you busy out the molasses comparison lol

Thanks for clearly explaining how LSPI occurs.

As an mechanical engineer and backyard mechanic, I really appreciate your attention to detail, diagnostic steps, and the multiple solutions you give the customers. Love the Condition, Cause, Correction, Confirm advice in the Lambo engine failure video; basically the scientific method applied to cars. Keep up the great work!

please take a sample of that oil if still possible; send it to Lake Speed Jr to see what the shop actually put in it!

Dave I never tire of watching your videos and how much you appreciate your employees and even talk them up on camera. Everyone deserves a boss like you that instructs and praises.

I'm in the 43rd year of being a mechanic and I've seen the good and the bad techs, As far as I can see I've got to say you're pretty lucky with the techs you have working for, very thorough and not afraid to these kind of jobs!! Great job guys!!!!

I have been a long time believer in a 60 second idle warm up and easy driving for the first 2 miles))) It is nice to hear Dave Confirm this.

He should definitely replace the timing chain and tensioners while the engine is out. The only exception would be if it had extremely low miles.

Good to hear your endorsement of Amsoil products. I use it in everything. Have never had a failure of a lubricated, internal engine component in a total of 700,000 miles spread between 3 vehicles.

Good work Dave and crew. Yep , I was a VW Audi tech for 30 years!! And being German, I never understood the reasoning, especially from a service point of view!! Timing chains and pensioners were another situation. You might want to put a timing set in there too!! Howdy from my Virginia retirement home!! Cheers Y'all 🍻 Rick. 🤠

Integrity and honestly, you have it and it is so rare.

I'm a retired tech with over 50 years in the trade. I still try to keep up with the latest as much as I can. I will enjoy cars until my dying day. I have heard of low speed pre ignition in direct injected vehicles but didn't know exactly what causes it. Your explanation was what I wanted to know. We also likely agree that somehow the public would find a way to ruin an engine made from industrial diamonds. I had customers ask me how a failure happened on their car and sometimes I had to say that I didn't know exactly. Looks like someone filled your engine with spray foam. LoL.

It's not oil, It's software. Email the major tuning companies and determine what fuel it is tuned for or ask them to assist in reverting to stock. APR 034 Motorsports IE Integrated Engineering Unitronic

There’s one more thing that can cause or at least contribute to LSPI. Dave didn’t say it on camera probably to save the client embarrassment. You must put premium fuel in an Audi and it should be from a top tier station. Not Mo’s Flow and Go. Any other octane grade besides premium will cause pre ignition even with octane additives.

What I like most about Dave is he lets the Auto Manufacturers know where they failed their customers like a disappointed elder. Exactly what they deserve.

lol the 50k mark after college was the norm 6 years ago, it’s 80k now and 80k today still feels like 50k after all expenses.

Dave always makes me want to switch professions to being a mechanic, such an amazing practical teacher. 👏

I know nothing about cars outside changing my own oil. But I can’t get enough of these videos. Fascinating stuff to watch masters work.

I was greatly impressed by your Tech, Alejandro, before you showed his tool box. He is efficient, thorough, and well trained. Not to mention making a good salary as well. Keep up the good work!

You’re the only guy on KZfaq who gets LSPI EXACTLY right. If I could add, non SP rated oil can lower the octane of the atomized fuel to the point it’s unstable at the higher, boosted compression ratios and operating temps of modern engines. GF-7/SQ is launching March 1 of next year. Most of the changes are specifically around LSPI with a smaller focus on fuel efficiency. The OEMs drove most of the LSPI changes. Warranty costs are a real b****!!

Engine designers moving the starter motor to under the intake manifold on V engines also is kind of crazy, adding a lot of stuff to remove for a simple starter repair.

I learn something with every video Dave puts out! Thanks Dave & the Team!

I am shop owner from Malaysia dealing with Peugeot n Citroen cars diagnostic and repair. Peugeot 1.6 direct injection turbo common issue here.can't explained how this happened to the customer when ever the customer asked. Learn today from u another knowledge gain from u. Hope that a shop like your here

Much love from Bosnia, Dave. Love your videos and your character, super calming, chill, knowledgable guy. You and a few other guys on youtube made me want to pick up repairing and servicing my own stuff.

I worked in a dealership that was bought out by another dealership.......they started having bulk motor oil delivered into a tank. We had NO IDEA what oil we were being made to put into cars. At the time the corvettes were coming with Mobil 1. They made us use the bulk oil they were buying............I left there in a hurry ! ! ! ! !

Ty so much brother - I'll be driving gently well warming up and changing my oil 2 times what is recommended. I've been wrenching for years but you never stop learning. This man is the best out there.

Part of the issue is the shifting strategy of modern transmissions. They often lug the engine at low RPMs, which is the perfect condition for LSPI.

As an Audi enthusiast i can only agree on the stupidity behind the decission to place the cam-gear/chain in the back. BMW does it as well now. Supposedly the bell housing absorbs the "noise" of the chain drive. Love your work guys. Greetings from Denmark

Wish all shops worked like this.

I believe H2 motors in Germany specializes in honing and rebuilding nikasil engines. The bmw S65 and S85 engines have nikasil cylinder walls and they have a special process to bring the silicone to the surface.

What you were saying at around 250-3 minutes hit home. I believe in my work and believe that I can tear down any engine and fix or diagnose it. I'm 23 with passion and a dream, went to trade school. Made 30k my first year out on track to make 50 and I still fell like my level of work deserves more. I applaud Alejandro and hope to follow in his path swiftly

Thanks, Dave. I learned something important about modern engines, rings, and why they require low viscosity oil. I'm old school and find it hard to change my stubborn ways. I tend to think heavy oil provides more cushion between parts, but never considered the fact that rings are lighter than they once were and how piston cooling needs a low vis oil. Super job!

Dave, I wish your shop was closer. I am in PA and you are out in UT. I'd bring all of my cars to you in a heartbeat. Not too many people like you that take the time to explain everything. You seem like you have a very successful business over there and it shows due to the techs you hire, how you treat them and how you treat other people. Keep up the great work. You earned a new sub.

Congrats to all the Men out there working with your hands and brains to build and maintain the Society.

Dave, make sure you update the rockers and lifters. B9 platform has major issues with the lifters. I'm also wondering if the car is tuned.

Dave, just FYI, Millennium Technologies and one or two other places can redo nikasil and other plated bores. Not sure if they can do car blocks but they’ve done several motocross cylinders for me with great results. Also, thank you for your work and your channel. It’s been a great education and serves as a great example for how to treat customers and your people.

I really wish all mechanics would learn from your shop! Truly aspirational. God bless you guys 🇺🇸

I recently had to get a direct injection engine for my car rebuilt because of carbon buildup burning out valves(from previous owner). Amazing how oil can make such a huge difference in an engine. Thanks Dave for your amazing and detailed videos!

I wish I had gone into this trade and wish i could work with and speak to Dave. What a great personality and amazingly great and honest person. Love the channel and content! Great team and keep up the amazing work!

Wow! The new videographer is amazing. The channel just went to the next level!

Previous owner most likely tuned the car. When the new owner bough it he was most likely unaware of it and put the wrong fuel in it. Email the popular tuning companies to confirm if there is or isn't a 93 oct or E40 tune on it. Which would for sure cause pre-ignition and engine failure as described if the new owner did not put the proper fuel grade in it.

Love watching from the uk.

Dave I love your channel and I wanted to say you have the luckiest employees in the world. What a pleasure it would be to look forward to going to work everyday at your shop with a boss that cares. Keep up the great work you are doing. Looking forward to your next video. 💙

Hello Dave, thank you for the knowledge you are spreading with your videos. I like longer content like this (or even more). I do an apprenticeship as a mecanic and I find your videos are very interesting and useful. Greetings from Switzerland. 🇨🇭

Thanks for the follow-up - that's what everybody wanted to see! I'd be curious what people think the "quote" will be. Dave is the best!

You wouldn’t believe how many comments I read “ahhh new oil on modern cars you can just start up and drive away as soon as the RPM’s go down”

This has turned into my favorite channel

Stepping out on a limb here but I have this car (Audi S5) with this AE839 engine and it’s a terrific car and it’s high tech, not to mention it’s wicked fast even stock. The car isn’t the problem, once again it’s people the problem. People put these shit popcorn tunes so they can squeeze more power yet fail to do proper research on the car. You said it yourself, you put the wrong oil, drive like a maniac out of the gate, and don’t do proper maintenance, I don’t know of many engines today that will tolerate that kind of abuse. If you want high performance then buy an RS5 or RS6 and stop being broke. These aren’t your dad’s big V8, these are sophisticated engines that offer great fuel economy and that need the best fuel, proper warm up times not to mention the correct fluids to work correctly as intended. If you want to crazy horsepower figures, buy a skyline GtR. Lastly, this is why I do shit myself, you’d be surprised how much you can do yourself with the right tools and KZfaq. Buy OE parts, the workshop manual and do all the routine maintenance. No way dealerships will put the same amount of love in your car like you can.

This is also why installing spark plugs with a torque wrench to spec is VERY important on DI. They are clocked specifically to the injector to that torque value.

Dave this is like masters level engine science, Class 5109 PreCombustion.

One badass video editor you have! Good work!

Dave... Thanks from salt Lake City.. You make us proud. Great work, Great Integrity, Wonderful KZfaq Channel.

Been loving Amsoil for my stuff for years! Cheers, great video.

4:46 Hola señor Dave!!! Gracias for teaching us the importance of using the right oil and those letters and numbers have a lot of importance to lubricate properly the engine…Gracias for sharing your wisdom with all of us your followers 😅

yes Dave, always tell my kids to warm your car up for at least a minute before driving away🇬🇧🛠

Great advice. Always warm up your car. Especially a performance car.

Dave, it's amazing how much I learn from you vids, Google legend and I'm sure there's a picture of you.. your mechanics are something else. Definitely the shop to go to in the U.S. 💪💪💪💪

Great info as always, I have watched almost every episode and enjoy learning from your channel. Thank you :-)

Awesome diagnostic on that S5, they truly are high spec engines, when I had a rs4 I would not move until it moved the water temp reading 👍,

Dave u guys are a great inspiration for me to keep learning and building every day ❤️👊 kind regards from the netherlands

Absolutely love this channel for this stuff.

Dave - love your channel so much. I'm a massive petrol head (yep in the UK) and I'm doing engineering at college so use your videos and knowledge for my research too. I was aware of 0w/20 oil and the pitfalls of GDI but here you have explained everything so well. Thank you. And it's a heart warming change to see a boss who sees his team as assets rather then numbers. In these awful times where no-one gives a s*%t about anyone, it is a breath of fresh air. I owe a lot to my late grandfather and as he raised me, taught me all I know and instilled the love of cars and engineering and your guidance for those guys reminds me so much of that so it hits home with me. Thank you for all your work! Richie

You should have a school, well you do on youtube but man, I learn so much from your videos

Dave, I've been out of the business for 10 years. Still do plenty of work at home in my own shop for myself and others, but if I were local, I would come work for you in a heartbeat!

im no mechanic by any means but i sure love cars and im enjoying this channel and content. and transparency and good costumer service always wins

Fantastic customer service and amazing skill!

I'm at the point, as an audi owner and had one of these and a w12 I worked on personally, they did this as a "racing standard". Their idea is run it hard, drop it out, put new one in, repair and repeat. No prevention possible for these timing guides, it's a when not if. Love getting to see my favorite brand up on the lift! Always something to learn.

i got the same engine in my sq5 ... they are incredible motors but these stories are not great to hear - thank u for the great explanation and teardown!

Eye opening info. Thanks Dave and Alejandro

nice to see someone that knows what he's doing 👍

Hi sir I am great fan of your work and learning new things from you 🛠️🔧

Love your video quality and explanation.

You're a great teacher. Keep up the great videos.

I have an Audi 3.0T engine and it is pretty weird. I'm always scared of braking it. These cars are cool but they are unusual. Nice work Dave and team, as usual. Sounds like a cool customer too.

love all your sports car and exotics videos! still patiently waiting for the next lambo vid!!!

Thanks for all these videos i adopted your work methood 4 C's on my own cars. All the way from South Africa.

Just reminded me of the older ford Explorer timming chains back in the day they still trigger me thank god they aint around anymore. Love the channel big G'day from Australia 🇦🇺

So when my dealer can't figure out my next misfire problem I should just send it to you?! Lol you guys are better then "dealer trained professionals" 😂

It will never cease to amaze me how cheap people can be. Oil is cheaper than metal.

Love it dave, keep up the good work!

Great to hear Dave talk about oils. I do my own changes because shops got annoyed with me asking for the spec. You wanna make sure your heart gets the correct blood type, right?

Another great masterclass! Thank you sir!

Another awesome video, Dave, thank you sir

The analogies really hit home, Sir.

Excellent information🙏👍🏼 Car owner is lucky to have you in his corner. Think the 3 litre Duramax also has it’s timing belt in the rear

Howd that go again Dave? Boop boop booop. Not trashing you by any means. I love the way you explain

Very informative. Thanks for sharing.

Love the channel, always good information great guys 👍

Thank you for filming this! I love the in depth video on this engine. I have one of these and have been gaining as much information as possible to perform my own diagnosis and repairs when/if they arise. There has been a debate online across every platform for years now about what oil to use in these specific engines to keep them from having failures such as this. Several very highly respected tuners have gone as far as recommending non factory specified oil viscosity (5w-40) for this engine. I'm wondering if you could contact those companies, and maybe you can get a good technical reason they're still recommending the thicker oil which increases this possibility of oil getting past these control rings with lower tension.

I believe that you’re a great mechanic,and your employees are better than good.Yall blow me away with your knowledge.❤❤❤❤❤❤❤ M

Love the videos, thanks a lot

I'm sold on your channel boss

Love u sir Dave ❤❤❤❤ Love from Sylhet Bangladesh, 🇧🇩🇧🇩🇧🇩🇧🇩🇺🇸🇺🇸🇺🇸🇺🇸

A few insights from the factory side of things on those 3.0 turbo engines: Audi moved the chains to the back side of their blocks years ago for packaging reasons. They could make the blocks like 2 inches shorter by moving them to the back internally. The Audi spec for the oil on those engines is 0W-20 weight full synthetic with a VW508-00 certification. Not sure what that translates to in an API rating off the top of my head, but it's a certification that many oil manufacturers will have somewhere on the bottle.

YES, Love a follow up video!

Dave rocks ❤