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100 thoughts on “5 Things You Should Never Do In A Brand New Car

  1. Had a traffic light grand prix with my 2 day old Honda Cr-v hybrid with a Vauxhall Zafira vxr…………………i won ha ha ha ha…..ouch my pistons ha ha ha ha,……….oh it does not have a rev counter fitted ha ha ha ha

  2. Rebuilding a '07 cobalt 2.2 ecotec (don't ask why). Do you recommend a specific break in oil? Non-detergent?

  3. 3000 miles of break-in driving for my WRX using a more strict version of this break-in process. No oil consumption with 12k oil changes.

  4. I bought a brand new car today!! Is there anything else I can do in order to make it last as many years as possible?? 🙂

  5. I know this is an old, old post from EgEx, but I work for Subaru, and had the opportunity to visit their SIA plant in Indiana (back when it was still Subaru Isuzu Automotive). The last thing we saw on the tour was an Outback on a chassis dynamometer, or whatever the hell you call it, and the tester ran that car up to sustained redline, as I recall to 120 mph, since there was a display we could all see. Don’t remember how long, but it was long enough for everyone to go “Dang!”

    I could be wrong about the actual speed, but I’ll never forget it, because 1) The tester peered up at all of us who were involved in the tour through the windshield (we were all on a catwalk looking down), and 2) I was astounded to see a brand-new car being tested that way.

    Who knows, maybe it was some beater used to impress the hoi-polloi on those tours, and I’ve always wondered about it. But it seems obvious that a slow break-in cannot hurt, whereas a hard break-in must surely have risks.


  6. Looking to buy a new car from a dealership that is 200 miles away from home. Will the car not have a proper break-in when, during the 2 hour drive home I'm guessing 80% of the drive home is highway speed.

  7. Cummins engine breakin procedure from the shop manuals. if an engine dyno is not available "operate the engine on the torque curve at less then rated speed for the first 50 – 100 miles after rebuild (eg pulling a loaded trailer at 1500 to 1800 rpm in high gear)". rated engine speed is usually 2100 for a big cummins, so that is full load pulling hard for 100 miles with a slight reduction of rpm.

  8. I wonder if these tips work the same with low powered card. What if I have a tiny 69 hp natural aspirated engine? When the traffic light goes green you have trouble getting into movement quick enough before the car behind begins to use the horn to push you forward. So with partial throttle in such a car you might have a hard time at first?!

  9. I don’t buy it. Anyone who has used any kind of sandpaper or file on metal will know that just a few passes on any metal surface will remove a ton of material. The rings seat within a minute or two of variable loads, engine braking included. Example; 500 miles at 2,500 rpm is 1.5 million piston strokes.

  10. Now Im super curious if there is actually a reason, or if this is one of those carry over traditions that have never really been proved, but always followed.
    More so, because this list is basically "to properly treat your car… dont drive it." haha

  11. I saw a video just yesterday that said the exact opposite. What should I believe

    (The other video was about bikes, but I don't believe they are deferent)

  12. When I got my brand new 2010 Gixxer 1000, I redlined it and did 280kmh in the first day.
    Then I fucked up when changing oil and ran it with half oil in engine for a day.
    Put 24000km on it in 5 months and sold it. Never had a problem.

  13. somebody help! i accidently drove my new car although I had already driven it about 100 miles, but i drove it about 250 miles with cruze control although adaptive cruize control and i slowed down a few times but i still drove it 250 miles at constant speeds!!! did i really hurt my engine?

  14. When I bought my new car 2 months ago I asked the dealership if there was any break in period I needed to know about and they told me no its not a performance car it's an Optima turbo. This kind of makes me think they may have been lying in going to check my manual after work now. Thanks for the vid man glad I ran across it.

  15. When to change the first oil .. the dealership says do it at 5000kms .. I don’t like it tbh .. I believe the oil should be changed at 1000kms to get rid of all the metal shavings?? Please advise

  16. Well, my car had 24k miles on it when I bought it. I guess the guy who leased it broken it in for me. Hope he did a good job lol

  17. Great tips. Just one thing: companies don't always necessarily do what is "correct". Sometimes they will do unnecessary things that even cost money, because buyers want those things done. Companies want to optimise profit, not necessarily safety/performance/whatever.

  18. You do know that engines in a brand new car are redlined at the factory before being dropped in. The points you mention relate to vehicles from many years ago. The piston rings are well and truly sealed before rolling off the production line. Most manufactures have already run in their engines at extended redline before they are installed. What ‘they’ recommend in the operating manual is an extremely conservative option. Without question the higher the engine rpm on any machine the more wear and tear. What you mention has nothing to do with break in period but more to do with company finances incurred during warranty period. WOT from new is nothing compared to ‘testing’ at the factory. If it was such an issue for manufactures, then ‘they’ would have you signing waivers which void your warranty, with ecu checks performed at each service interval. It does not exist because the engines are already run in.

  19. The speed variance has a purpose on break-in which you did not mention. As the rings slide against the wall of the cylinder, wall it takes off microscopic layers of metal off those walls. When this is done at a constant speed the rings will essentially go to the same place at the top of cycle. Now here is where it gets weird. A lip forms at the top of the stroke on that cylinder wall. if at some point the engines is revved to red line, the heat and the stroke causes the connecting rod to stretch every so slightly which could cause the rings to run into that lip, which could cause the rings to explode, which would cause you to have a multi thousand dollar rebuild. So after break-in, you should do a high RMP periodically after the engine is warmed up, so as to keep that lip from forming.

  20. I agree bro! Cool to see the same opinion from someone else, I made a video in regards to this as well and like you , also referenced the manual! Check it out if you can! I’d appreciate itn

  21. Why don't car companies put X # of miles on the engine to properly break it in for you? So, when you drive it off the lot, the engine is ready to roll. I suppose that makes too much sense.

  22. On a completely off-subject topic, if the force of rolling friction is equal to mu times the normal force, why do wider tires (all other factors being equal) give more traction?

  23. You should have covered coated cylinders line on most modern 4 stroke power sports engines. These I am a firm believer of a hard break for the simple fact that they don’t wear out you just seat them and go. Where as with a classic steel bore yes absolutely take the time. On a 2 stroke with a plated cylinder I usually take it easy for a little while but the 4 strokes I ride for maybe 10 mins then put it under a good load for a bit to seat them then they’re good. Never had an issue that way with those specifically

  24. there is a guy which tested the two methods and opened the engines there was no difference at all manufacturers do this just to let you get used to the car before flooring it to reduce risks new engines are perfectly fine

  25. I generally avoid flooring the engine whether new or old. Alot of people do jack rabbit starts at the stoplights. I find that abit hard on the engine and trans. I want my engines and transmissions to last a long time.

  26. I broke my Acura RSX-S in pretty hard and it was a great running car. It seemed to hit it's stride after about 100K. I sold it with 217K miles and it was an amazing engine the whole time. It did use about 1/2 quart of oil every oil change but other Hondas that I've owned did the same thing. I just broke in my GTI semi hard…. a few short full throttle bursts after a couple hundred miles. It's feeling really sassy now at 5K. 🙂

  27. Basically don’t drive too much at first, but also don’t do short trips… don’t keep it at a constant rpm, don’t floor it, don’t do anything lmao

  28. Funnny. No harm came of me flooring Tesla after I just got it brand new. Probably got close to 10,000 rpm as well.

    This old fossil technology is so weird. So restrictive and fussy.

  29. Car intermittently smoked white/blue smoke already changed the oil at 75 miles smells kinda like a dirt bike burnt oil smell?

  30. Well, I know I broke a couple of these when getting my new wrx, I accidentally shifted into a lower gear and went past 4000 rpm. I also drove 81 miles to buy the car so needless to say I used cruise control on the way home. Damn, guess my new FA 20 is shot now….

  31. Just because all the companies say something doesn't make it true. I can assure you that without a doubt they are saying that for their benefit not the end users. Which is not to be confused with the customer's benefit in any way. Inb4 well they don't want the car to break on you… I'll take what is engineered obsolescence for 400 Alex.

  32. I haul new cars. Everybody floor boards your new car before you get it. The rail yard, or ports are race tracks to get your car to the dealership. Cold start, and floor it, all the way to the "spot", or transport truck.

  33. In my drive from dealership to my home
    I reached top speed of my car 😂😂
    I reached 180 Kmph
    Now I really feeling bad for my engine
    At second gear I did 7000 RPM redline 😂

  34. Bull dust run like you would drive it best place is a race track you only got a short time to bed down the rings but if you want an oilburner run it in gently. I have run in many engines and my bikes don't use oil even my 250 has done over 70 thousand doesn't use oil. Always warm up your engine always change its oil regularly. I am a mechanic by trade and I used to work for an engine reconditioning shop we always drove the cars normally if not a bit harder t o seat those rings down.

  35. When I put first 1000 miles on my Focus ST, I would just change gears on the highway headed to work and accelerate from 65-80, basically rubber banding and changing gears

  36. @engineering explained, most dealer employees abuse brand new cars during pre-delivery inspection, detailing etc. Would still be beneficial to do a light break-in after?

  37. Stop posting videos commenting on what is good for a combustion engine. You are not a combustion engine scientist nor have you provided any relative evidence to support any of your claims. The only justification for not hot rodding a new car is being nice to the automatic transmission and other wear parts that do NOT include the engine. It has been proven a thousand times over that engines need a hard break in for best combustion, the least amount of blow by, sealing efficiency and overall longevity. No race team on the planet follows your recommendations. No engineering team will validate your claims. The reason the owners manual states otherwise is for the benefit for the manufacturer, not the consumer. Stop spouting this non sense. Stop it. Now. Please 😀

  38. So i had a remanufactured engine installed and they recommend break in. What is a "varied throttle" cycle. Speed up slow down continuously, or speed up for a minute slow down for a minute, what does it mean?

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