welcome back everybody its mark with exotic car play place and today we're
gonna explain oil consumption and if you stick around later in the video I'm
gonna explain to you what the next treat is for the next video but what we're
really getting down to are the top 10 facts about the e60 m5 that you would
like to know and I'm gonna express them one by one in much more detail but if
you want to see the video overviews they're attached to my comments and they
are a summary those two videos are a summary of the top 10 things that you
need to know about the e60 m5 and today I want to touch on the oil consumption
so oil consumption is a real concern for any car
well consumption means you're utilizing oil in a way that it wasn't necessarily
intended the idea behind oil of course in an engine is to lubricate the engine
all the moving parts you want to keep everything greased up but the problem is
when you start losing oil or using it that's a problem and so losing it is one
thing and we're gonna assume that you don't have any leaks now there's a lot
of points potentially for leaks in these cars some of our the vanos systems of
course it's an engine with a sort of semi is quasi dry sump setup but there's
also a lot of potential for burning oil because it is a high-revving engine
high-performance engine and it's not uncommon for the EM cars to consume oil
and oil in the way of this product here is this BMW product of oil which is very
expensive at about 15 dollars a quart you don't want to be using too much of
this oil so lots of people who drive these m5s start to ask why it is my car
used so much oil well what are the rules of thumb well there's a lot of different
talks about what's considered normal oil consumption I mean if you talk to a guy
who's driving a brand-new Ford pickup truck he's gonna say he doesn't had any
oil between oil changes but guess what he's not driving an EM car and if you
drive an EM car often you are going to use oil and you're gonna use excessive
amounts of oil in some cases a lot of times it's not uncommon to use one maybe
two quarts per thousand kilometers would be high but a thought a quart per
thousand or 1500 kilometers is almost mainstream for these cars
and this is something that a lot of owners start getting used to why does
this happen well a lot of it has to do with the internal design of the engine
most engines don't rev that high most engines have tighter tolerances by
design because they don't rev high now we know tight tolerances are a problem
in these cars but that's more along the way of their rod bearings they want to
keep the bottom end of the engine tight and that is one of the contributing
factors to oil consumption in e6 tm5 but when it comes to oil consumption per se
that just becomes a rod bearing issue oil consumption usually comes in the way
of bad valve guides valve seats or valve seals and of course bad rings piston
rings those can all contribute to oil consumption if you are not assuming
you're not leaking in of the oil so by design people have asked the question by
design is that something that you want to have do you want the car to utilize
oil well BMW actually does want to use oil
there's inherently a design incorporated into these engines that will allow you
to use some oil because it's such a high revving engine what ends the hop tends
to happen is if you have a nickel liner in an aluminum engine and your rings are
too tight in the engine because of its high revving nature when you start to
rev the engine very high what can actually happen is it starts to expand
the metallics start to expand and of course the high revving nature tends to
take more of a toll on the bores of the cylinders and will likely create
premature wear on the cylinder bores as well as the piston rings if you have
tight tolerances and of course that material tends to expand in that way too
to lead to those problems so how do you get around that problem well you don't
the fact of the matter is you don't you can reduce some of the issues obviously
the nature at which you drive so driving harder driving easier can have an impact
directly on how much oil consumption you see of course that will take a toll as
well the type of oil you're using the viscosity of the oil all has plays a
factor in there as well but oil consumption
unfortunately part of this is by design and because of its high reving nature
and the expanding nature of the metals being again aluminum block with the
nickel liners there is a tendency to tighten up as the engine heats up so by
design there was a reasoning that they want the looser tolerances in the Rings
when the engines cold so we're not seeing excessive wear in the cylinder
bores so that is one thing by design now there is one thing that can help a
little bit and a big part of the way an engine is broken in is a major factor in
how the engine survives and the future oil consumption that you may experience
so in braking in the engine and all you have to do is read the manual often they
give you some basic guidelines but I mean if you're buying a used car like
this the m5 and unfortunately you know a lot of these cars now are exchanging
hands 2nd 3rd 4th time over and so you don't know necessarily what the first
owner did and it really it breaks down to the first couple thousand kilometers
is critical and it's crucial in how you treat the engine number one when you're
braking in the engine you don't want to rev it beyond say 5,000 rpm high revs
with a fresh engine is sure grounds to have excessive wear and and kind of set
the engine you're setting the tone for that engine effectively for the next 100
to 200 thousand miles so you want to break it in properly and what breaking
in properly means you're not over Regan revving it to 5,000 rpm you're not under
oven it so you're not loading it up too hard with low revs and hard acceleration
you're also going to what you want to do is rev the engine to different levels
you want to constantly move the engine speed up and down through its rev range
not exceeding the proper top Rev of course but you want to move the revs up
and down you want to vary the engine speed you don't want to cruise for long
periods of time at a single speed that can create a problem as well so again
it's a lot of variable driving style without excessively you know leaning on
the engine too hard at the low revs or at the high revs you just want to kind
of grip break it and nice and easily we'll help and set the tone for the next
hundred thousand miles of its life so that's extremely important and
unfortunately a lot of owners did not do that out of the gates and those same
driving styles can contribute to premature bearing wear as well by the
way now on kind of an interesting note I've spoken with owners of East sixty
m5s that talked about you know oil consumption and they've tried to take
claims to the BMW claims desk of course the warranty concerns because of excess
of oil consumption and a lot of times what you wind up getting is BMW pushing
back because they're saying that you're either abusing the car or you're over
revving it during break-in and that has led to these problems I've also spoken
to people with the F tens or the F 90 m5s and they talk about excessive oil
consumption already and with those what BMW came with is they didn't drive them
hard enough they said you as the owner didn't break it and hard enough you're
under your babying it you're under driving the car and so therefore the
Rings and the valve seats and everything didn't get a chance to set in properly
and therefore now that's also setting the tone for excessive consumption so
this just brings us back around full circle to discuss how important it is to
vary your revs through the warmup period and through the the break-in period but
not necessarily over revving it not driving a too hard under load hard boost
don't do any hard launches just a nice easy break and up and down the revs as
well very very important your first couple of oil changes should be very
very soon you never want to extend those first two or three oil changes make sure
you get your first oil change after say 500 maybe a thousand miles change your
oil again even though the computer systems not telling you that you do that
anyway that's critical get that dirty oil out of there because that can impact
your battles or any of the other solenoids in the system and of course
the dirty oil as well engines braking in there are metallics that are coming
apart there are parts of the engine that are wearing down basically as the engine
starts to seat so you want to get that material and and all that particulate
out of the oil so the first couple of oil changes when you first buy these
cars is critical so everyone I really hope you enjoyed the
again the next video is going to be talking about the e60 m5 and the cold
start and I'm gonna give you a cold start and show you how it sounds or
explain to you and so you can listen how this car sounds at a cold start and I'm
gonna explain to you why it sounds the way it does some people say it's
chatters almost sounds like a diesel engine and I'm gonna explain why that is
what's happening in there that makes it sound like that and we're gonna get just
into a little more detail on that like I said on the last mate those other videos
that I created the top five things that you need to know I've made two of those
videos I touched on the surface but I didn't get into detail so next video we
will get into more detail and again thanks everybody for coming by I really
hope you like this video make sure you give it a thumbs up share it with your
friends comment below of course if you have any thoughts around what I just
explained you and most importantly if you're not already subscribed make sure
you do alright everybody will talk to you real
soon and have a great day bye bye