Shelby GT350 Blown Engine Failures? How To Break In Properly 

Proper engine break in procedure prevents excessive oil consumption, piston slap, and engine failures. Time to have some fun!

I hate to admit it, but Mustangs have the best exhaust note

I took my GT500 down a bunch of backroads for the first 1000 miles and I have some very curvy roads where I live lol I did what you said by varying the RPMs etc. I have 3000 miles on the car now and I'm doing my first oil change this coming weekend. When I've checked the oil during the course of driving it I've have no consumption at all and So far so good! I'm also loving that new GT350 man! 👍

Picking up my Heritage Edition today. Thanks for the video. Your break in method is exactly the same as when I used to build motors back in the 70’s! Makes me feel much more secure hearing your method is the same!

0:11 Is the reason why he sold his Redeye for a ShelbyGT350. No more 🛥 of a car

Congrats man! This car is so sick. I wish I could get one of these. And I agree they are fer sure the best sounding v8 on the market!!

If the 1st 100 miles are that important, they should have broke it in at the factory. But what do I know. 😅

I broke my 2019 GT for the first 1k miles. First 500 drive like a granny then next 500 drive like a normal car and then after that use it to full potential. So far no issues. Good to see someone doing it properly 🔥

JUST HAD MY ENGINE REPLACED. I got the long block replacement which is almost a crate. I bought the car used at 20K. At my scheduled oil change I had used 18qts. I was adding a quart every 1-2 fill ups. 18qts in 8k miles. did the consumption test. failed. checked the PCV valve, did all the tests Ford asked for and then they said yes. SO, I now have a 2017 GT350 with an engine with 97 miles. I need this video.

Excellent about details about the breaking period this is the proper way, and even the mustang GT there is a short 500 milles of braking period. Important for ring land to seal correctly and your engine will make more HP.🤙🏼😎💪🦿👏

It's hard keeping your foot off the gas pedal. Especially when all the action is above 3K RPM. One thing that helped me was setting the shift light to 3K RPM during the break in period. That gave me enough time to see the lights flash before I hit 4K RPM.

I still think Fords 4v DOHC engine sound amazing. The 5.2 flat plane crank is the icing on the cake.

Love my 2018 gt350...took it easy the first 1000 then changed the oil.. No oil consumption no slap. Im at 7k now

I’m actually more excited for your 350 over the 500’s. I think it’s because it has the stick. I’m excited to see what you do to it 👍🏽👍🏽👍🏽

Great explanation! As an R owner and under 100 this vid is perfect timing man! Don't think anyone can disagree with anything you spoke of. New subscriber, keep up the good content!

Ion know about it sounding better than a hellcat but its definitely nice!

The strange thing is, if you follow the Ford manual break-in procedure, it doesn't say you can't rev over 4000rpm and even allows for full throttle as long as it's not extended for the first 100 miles; no extended WOT until 1000 miles. I've always done the deceleration thing with new engines- first three gears, three times each up to 6000 rpm and always seats real good. Always warm up the engine to operating temp first. I guess everyone has their way of doing it. The GT350 is an amazing car. Enjoy it!

I've never driven a stick so bear with me, does this means you never get out of 3rd gear for the first 100 miles or when in 3rd you get to 4000 rpm's let off the gas and shift to 4the gear and do the same until you are in 6th gear on the freeway, my dealer is like 150 miles from away

Pro tip. Your foam temp fix, will make the gravel stop from resting on your lower side skirts. It won’t help at all on the rear qtr panels. I had a black 2017 and had those foam inserts too. My rear qtr panels were destroyed in the first 1k Miles. You MUST get the front mud flaps ASAP

I just got the car this past Friday and I’m so happy to know I’ve been breaking it in almost properly. Im at 304.7 as of today. Should I still follow what you do for the first 100 miles?

Thank you for your informative videos. Ordered splash guards for mine right after watching this.

Congratulations on your new ride and I see you really enjoy it!

I drove it 2k miles home. For the first 1k miles i kept the rpms below 2800 after that I went up to 3200 rpms. Drove on 6th gear most of the time. Now it has 2200 miles and won’t drive it until I change the oil. The oil level was the same for the first 2k miles. It was checked at every fill up. I also have a 2020 Model.

Really appreciate the break in information. I am looking to buy a GT 350. I seen some used ones but you never know if they broke them in property

I agree, v8 mustangs are the best sounding cars out there. I can always tell when a mustang is coming down the road.

You forgot to include the maro 1le& zl1 into the things that they need to look out for on the track lol the maro is the best track car for the track , comparing the big 3 brands

They are ticking time bombs, to many of them blowing up without even mods. It's sad but true, and I really like the Mustang, bummer🤔

Another great video man!

It’s amazing how many people don’t do this even though it’s in the manual. 14k HARD miles on my 18R, no oil consumption

Bro you're the 1st person I've heard break the break in phase like that properly. Only other person I've heard was an SVT Specialist at this Ford dealer near my mother's house. That was 2017, and he's had no engine problems. S.N. You're making me want a 350 now. 🤦🏾‍♂️💪🏾💪🏾💪🏾

Liking this Video so I can come back in a month when I get my GT350 delivered! Is there any else do you recommend about the breakin in procedure? I really dont want to have any problems down the line.

That car is a beauty Cory Congratulations.

Whats your oil temp when you're breaking it in the first 100miles? Because ive heard from other people you want it around 140⁰C when going over 2500rpm

The supplemental manual doesn't give a lot of detail other than no competition driving until 1000 miles. I kept mine under 4k when I could. I admit revving to 6k maybe twice under 1000 miles. I then changed the oil at 1000 miles. No oil consumption. About 15k on the odometer now on my 2018.

I absolutely LOVE the GT350 but with all the engine failures and Ford not being very friendly when it came yo buy backs or fixes has turned me off and decided to get a regular GT instead. So far I love it too but the main thing that bothers me is how the rear end feels loose like it moves from time to time. Also, that MT-82D shifter is so sloppy. Those are my main issues with it but considering how reliable and fun it's been, I can't complain. So far I've done a BMR subframe mod and an oil catch can. Will continue to upgrade the suspension to see if that rear end sloppiness goes away but so far it only fixed it a bit, I can still feel it but it's much less pronounced and definitely feels better on the corners

I just bought my new 2019 GT350 R, and i couldnt be happier! what a machine and driving experience it is.

Nice car bro. Looks good with the black roof.

I also wanted to say. There are a handful of GT350's, a couple from youtuber channels too. Bought low mileage, maybe 1000 miles or less. They experienced engine failure shortly after. If someone buys new, then sells with less than 1000 miles on it, you can bet they at least redlined it a few times before sale. Maybe ran hard from the beginning.

2019 R owner here, wanted to get your thoughts... I’m just over 100 Miles, my first 65 miles were mostly around town driving, varying speeds, I almost always rev match down shift. The other 20 or so miles were on the high way a bit where I did get into higher speeds 80-90mph....i never really sustained more than 10 miles of steady speed.. I never once revved above 4K.. how do you think I did?

Good videos dude. I think i share the same love of this car. Ever since they launched it, this is my dream car. One day i hope too make it happen

A lot of guys probably leave the dealership and immediately shift to redline

Nice man congratz on the stang love those my ex gfs dad has 16 gt350 in black, yours is sicker

Before you delete your resonators. Best exhaust upgrade to the gt350, put down the back seats ! HUGE difference.

Should not consume oil at all if it’s broken in properly!

2017, 48k miles and yeah the patience was worth it

I took easy on first 1000 miles on my 17 gt 350 no problems at all They can make fun of you but I have owned 23 mustangs over the years and my gt 350 makes me giddy ever time man have fun!!!!! Like burachlor said on his u tube channel I am going to be buried in it LOL

Great content. This has been my favorite car. I regret not getting one now that I saw yours. I too owned a Challenger SRT and Mustangs in the past.

The thing that made me buy this car was the motor. Then got rid of it also because the motor. When you drive in sport leave all your settings on sport and turn your steering to soft. Steering in sport sucks, it’s too damped.

Love the video men keep doing your thing

what oil do you recommend and when did you do your first oil change?

Great video man. Very thoroughly explained. I feel like so many owners needed to hear this back in 2016 LOL. I could faintly hear the piston slap as your rpms fall after the baby rev around 2:12. BTW I have that, only under light loads and that 2-3K RPM range. Pretty much inaudible once engine oil is at 200 degrees. Have had it for the 20K miles I've put on my 2017. Subbed.

👍 Just subscribed, just found ur channel, enjoyed it and i gotta say beautiful Mustang you have there. Anyway great video keep'em coming. 🇺🇸

Hi new subscriber here and I'm a big fan of mustang bought my first new car in 1986 Ford LX mustang with the GT package and now I'm looking to buy my second new car a GT350 next year it will be my early retirement present . Looking forward to see what your doing with yours! Oh how does this sound for a name mean Green machine?

3:34 Hello, I have more questions because I’m looking to buy a GT-350

The car looks and sounds sick bro love it. What do you think of the manual Hellcat or the manual 392? I like to get one of the two but I'm not going to the drag strip a lot. I think for a street car the manual will be more fun. What you think

I'm unsubscribing I'll subscribe again after a thousand miles

Why didnt you get a M6 Hellcat in the past? 800+rwhp in a manual Cat is crazy. Ask me how I know😎

Hey I’m getting into a 2018 gt350 but has had a manufacturer buyback for the oil consumption and the gauges not working… it has two recalls and shows they got it serviced…. What is your opinion on buying it or step away from it..

Hearing this fucking exhaust never gets old not even a little bit

How did you get your gauges to switch over to blue? or is that the camera?

the gt350/gt500 are the only mustangs i’d ever get.

Thank you for being a great car content guy!

They denied the claim from Doris "Woman Driven" on a well known engine problem. That in itself got to me to dislike Ford.

So what about the first couple of hundred miles that were on it when you got it ?

Dude awesome car. Much love from Saudi Arabian fan ! A question where I can get that rock ship for the door?

I did proper break in and it blew at 8800 miles Ford bought it back under lemon law

At 16,000 miles I think my my engine break in is complete.

I agree This green voodoo is a Nice car it doe's sound great! But I would definitely have to disagree with you on it being a better sound over a Redeye with GT Haus exhaust. I know that you are fickle and in love with your new car! but let's not get to carried away from reality?? Lol

Getting a brand new engine tomorrow from excessive oil consumption in my 17 GT350. Did you use conventional motor oil to break in before switching to synthetic? Also, does rev matching have any effect on seating the rings?

I got a 19R with 203 miles. is it ok to rev match during break in period?

Awesome channel !!Gonna hit a mill. soon! God Bless!!

Amazing car

Must be very sunny

It's not a couple of engines....it's a lot. Including those properly breaking them in and performing maintenance.

I just sold my evo 10 final edition. Looking at a gt350 next.

what options did u go with from the factory?

Question though - around 9:45 you’re talking about how in reality the GT350 would be Ford’s best track car (which I don’t dispute), but the one major difference between the GT350 and the GT500 being the Supercharger. Do you think a 350 w/ a Supercharger would take a 500 on a road course, or would it be about even?

I know several car guys (who know how to properly break in new engines) who have blown their GT350R. Please keep us informed in 6months if yours does not blow

Now is this the proper Ford engine break in procedures or something you found on a ford forum ?

Have you driven the C7 Z06? I’m torn between that and the gt350 . Great vid!

10:08 Why does this bother everyone so much? I would have to think if Ford wanted that closed, they would have designed it that way. I have to believe that aero exists for a reason and to serve a purpose however small it may be. Nothing stuffed into mine and honestly, it doesn't get all that much in the way of rocks etc. in there.

Can't wait till this beauty is broken in, beautiful car

I can't wait tell you put some boost to it.

Hell yeah great video plus you have two on my dream vehicles the JEEP SRT-8 and the the GT-350 💦👍🤟💪

Break in.. period Oh you're mr. Responsible now

I want one. What did this cost out the door corey? I am thinking 66k

Best color🤥

LMAO every time I am down shifting people think I am Rev'ing my car at them... LMAO Can anyone drive or at least get how Manual's work these days.. Honestly I have gotten more hater reactions from people on the Raod than love.. Only other Muscle car owner's give me a thumb's up or Mustang owner's.. It's crazy how much hate these car generate...

Very good video. Thanks..

Fold them back seats down for the full Dolby Surround Sound experience

***UPDATE*** My engine blew! Kidding, nice video. What’s your thoughts on heat cycling?

Whatever you do don’t use motorcraft oil! Amsoil or Driven oil is the best on the market! Check out Autofanatic channel! He had a 350 and now has. 350R! Very knowledgeable on cars and knows his stuff on the 350!

Be careful with modifications... Ford got void the warranty to WD after engine failure because of modifications. I know you are smart...

Two completely different cars in my opinion REDEYE and GT350. One is a muscle car and the other is a Pony. One is a Canyon carver and the other is a straight line rocket you can take to the grocery store with your kids. Nonetheless the Stang is beautiful it’s a GT500 “black key” sorta speak. I love your content you do a fine job providing information my friend. However, I feel like you are trying to justify the trade by hyping the Stang and down playing the REDEYE. I could be wrong, just my gut feeling. Like you I’ve driven both and owned everything under the sun, as a retired professional Basketball Player at 6’9” 290 pounds squeezing in a Mustang is difficult. On looks alone I’ll take your REDEYE. Again, I’m a fan of your content, keep it coming. #ProudSubscriber

u look like you have 16 years old without the beard lol

what year do you have? 2019 - 2020? I believe that the problems may of been solved with the Gen 2 voodoo engine.

Congrats I’m KR 700

You’re driving a lot better car now!! Fords are 10 times better then any Dodge! Mustang Shelbys are Absolutely amazing cars!!

I Can’t Wait For The Mods Tho 😈

Why are you wearing shades when it’s dark out?