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5 Things You Should Never Do In A Brand New Car - YouTube
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Hello everyone and welcome. In this video
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we're gonna be talking about five things
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which you should never do in a brand-new
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vehicle. Now the definition of brand-new,
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of course, will change depending on the
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vehicle, but generally we're going to be
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talking about the first thousand miles
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of which you're going to be breaking in
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your vehicle, so check your owner's manual
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it'll tell you you know what that
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break-in period is but we're gonna be
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talking about five things which you
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shouldn't be doing during that time.
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Now I think it goes without saying, but I'm
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going to say it anyways:
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In the event of an emergency, ignore
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everything in this video and just do
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whatever you need to do to be safe.
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Like I said, I think it goes without
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saying, but some people out there may
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value their car over their own life you
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shouldn't do that you should value your
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own life. So you know the biggest things
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we're going to get into of course have to
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relate to the engine and these are going
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to get somewhat controversial, but you
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know, one of the biggest things about
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breaking in a new vehicle is breaking in
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the engine and making sure that these
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piston rings seat properly on your
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cylinder wall so on your cylinder wall
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you know you've got that freshly honed
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cylinder bore and you want to make sure
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you get a nice seal between that and
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these piston rings. Now these piston
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rings have some spring tension in them
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which allow them to expand out and rub
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against that cylinder wall but that's
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not really what's going to be doing the
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majority of wearing in this piston ring
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on that cylinder wall. Really, you've got
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the combustion process occurring on top of it.
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Those gases are going to pass in here,
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they're going to get in these gaps, get
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behind the piston ring, and force that
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piston ring out, and expand it out on
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that cylinder wall, and that pressure is
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what's going to wear down that cylinder
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bore. Now you don't need an excessive
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amount of pressure to do this and this
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is where it gets kind of controversial
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so points 1 and 2: Don't floor it and
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point 2: Don't bring it all the way up to
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you know red line to your highest RPM,
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and you know there's certainly people
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out there will say a hard break-in is necessary.
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We're going to talk about you know kind
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of why that's not true based on all the
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data that's out there based on all the
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information that's out there and based
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on what all the manufacturers out there
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recommend and so basically what you're
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doing, like I said, you're sealing these
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piston rings up against that cylinder
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bore and wearing it down to have a nice
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seal. Now you don't want to do this too
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fast and with too much pressure.
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There's no reason. You can cause damage.
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If there are imperfections, you're going
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to wear down those inf--
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imperfections too quickly and that could
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cause hot spots which could cause
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problems.
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So you want a nice gradual wear of that
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cylinder bore with
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these piston rings so that you create
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that good seal and some people out there
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will say you know for performance if you
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want maximum power you need to floor it, you
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get that perfect seal, and the only way to
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do that is with super-high pressure, but
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if you look at performance cars and what
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they recommend this is not what they
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recommend doing so just a few examples
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starting with the Nissan GTR for the
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first 300 miles they recommend not going
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over 50% throttle and they
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recommend not going over 3,500 RPM, and
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that's for those first 300
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miles and so you know as you can see I
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mean obviously the GTRs performance
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vehicle, obviously they wanted to have
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the performance that you expect from it.
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Why would they recommend that if they
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didn't you know believe that to be true
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if you know the best method of breaking in that
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engine was with lighter throttle
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applications and without going to super
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high rpm. Another interesting example is
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the new Acura NSX, and one of the cool
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things that they do is they break this
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in from the factory and so they have a
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procedure where they put the equivalent
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of about 150 miles on the
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engine varying the load and not
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exceeding 4000 RPM on the engine and what
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they say this does is that when the
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customer takes delivery of their new NSX
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they can go straight to the track
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because they've already put in this
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engine break-in process and so you know
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from the factory the cars good to go you
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can take it out to the track. Now why
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would Acura spend the time and spend
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the money on breaking in an engine
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keeping it under 4,000 RPM varying the
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load if it wasn't necessary to do for
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the safety and performance of that
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engine? They wouldn't, it would be a waste
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of time and money like i said and so you
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know these are just another example out
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there of a company which doesn't break
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in from the factory that's their
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procedure keep it under 4,000 RPM
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through the equivalent about 150 miles and then let the
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customer thrash it on the track on day 1.
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So a cool thing that they do so you
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don't have to do the break-in procedure.
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Another example is the Corvette the new
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Corvette the C7 you know they recommend
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and they specifically say for
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performance reasons and you don't want
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to exceed 4000 RPM and you don't want to
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do full throttle starts in the new
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Corvette. Basically, in those first 500 miles
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and then they have a separate
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procedure for the next thousand and they
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have you know a total of 1,500 miles of break-in,
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but for those first
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500, keep it below 4000 RPM and don't
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floor it from a start so you know more
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recommendations out there, these are different
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companies they're all saying very
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similar things and actually had the
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honor to speak with someone who worked
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in FCA's performance engine division. They
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actually have their own land speed
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record car where they took a two liter
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out of a Dodge Neon SRT-4 and you know
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boosted that up to, I believe 800 horsepower
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of an absurd amount of boost
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in it and you know they had they were
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telling me they're break-in procedure
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for that engine with 800 horsepower and
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once again it was varying the load and
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it was changing the RPM, but not going to
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high. I believe the highest he went was
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4,000 RPM, and I asked him, you know, you
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work in this world, you have access to
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this data, you know, is there any
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advantage of a hard break-in, and he said
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absolutely not there's no advantage to
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it you know it's just a risk and so it's
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an unnecessary risk
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you can do a lighter break-in obviously
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don't baby the vehicle. Give it you know
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decent throttle give it half throttle
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something like that, but you don't want
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to floor it out because you can run into
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that risk of causing damage if you get
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things in there too hot where these
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imperfections lie. You want to wear them
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down more gradually rather than quickly
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now yes manufacturing tolerances have
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greatly improved and it's always getting
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better but this doesn't necessarily
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eliminate the need for break-in period.
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Typically, what it just means is that the
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break-in period will be shorter than
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they previously were as a result of
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better manufacturing tolerances.
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Okay, so we have points 1 and 2: don't floor
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it, don't bring it up to redline, and our
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third, we're going to talk about don't
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use cruise control and really the reason
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why you don't want to use cruise control
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is because you want to vary that engine
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rpm as you're driving and when you set
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cruise control
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you're just gonna have one set engine
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rpm especially with manual transmission
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vehicles which obviously aren't going to
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shift for you but basically don't want
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to use cruise control because you don't
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want to keep it at a constant speed. You
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want to vary the engine's load and you
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want to vary the engine's speed so that it
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gets used to all these varying
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conditions and it properly wears it in
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so you know you can take that into
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consideration and think you know maybe
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you shouldn't do a thousand mile road
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trip as the first trip in your car
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because you're probably just gonna be
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sitting on the highway at one set speed
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at one set throttle position at one set
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RPM and so you really want to vary the
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conditions for a proper break-in.
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Moving on to number 4: You want to make sure
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that you avoid short distance travel.
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By short distance travel, what I mean is
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travel that doesn't let your engine
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fully warm-up. You want to make sure that
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everything gets up to operating
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temperature during all of your trips,
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especially for those first thousand
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miles because you want to make sure that
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you break everything in at operating
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temperature. You want to make sure you
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have proper oil flow, which is only going
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to happen once you get things up to
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operating temperature. You also want to
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make sure that things are expanded to
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their final state so that when they're
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breaking in, for example, that cylinder
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it's going to expand out and wear down
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that cylinder wall and so you want to
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make sure it's at its operating
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temperature so that everything's in that
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expanded state in its warmest state so you
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get that proper break in.
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Now, that doesn't mean short distance
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travel as far as like driving around the
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city isn't going to be good, it's great
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to do that you know driving around the
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city you vary your engine rpm, you vary
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your load, and that's great to do. You
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just want to make sure that things get
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up to operating temperature during each
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of your trips while you're breaking in
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the vehicle. And finally number 5: You
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want to make sure that during those
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first thousand miles or whatever it may be
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you're not towing something super heavy
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something you know at its total capacity.
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You may just want to avoid towing in general.
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There's several reasons for this:
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First of all, it's going to be putting a
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higher load on your engine. That's
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obvious because you've got more weight
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and to accelerate you're going to need
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more power and so you're going to be
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giving it more throttle. You want to
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avoid those full throttle applications
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and so in doing so you know the better
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ideas to just not tow for the first
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duration. Now, some vehicles are going to
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be designed more for it than others.
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For example, this Crosstrek says it can tow
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1,500 pounds, but you may want to avoid
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it entirely because this isn't really a
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vehicle setup for towing until you've
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reached you know the end of your
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break-in period so you're not going full throttle.
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Now there's two other reasons and that
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comes down to your brakes and your tires
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while you may not want to talk for those
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first few miles.
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Both of these have break-in periods your
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brakes and your tires and so you may not
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have is as good of braking power and you
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may not have as good of stopping power as
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a result of your tires because you will
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have a film essentially from the molding
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process of those tires that can be left
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on there so your stopping distance for
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the first couple hundred miles of your
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vehicle driving your vehicle isn't going
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to be as good as it will be later on and
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so in an emergency situation when you're
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towing, where you know you need that
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extra stopping power,
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it's good to wait until you know that
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your brakes and your tires are properly broken in.
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So thank you all for watching
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and if you have any questions or
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comments, feel free to leave them below.
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