CossieEdd

We all know that the YB engine uses a lot of oil compared with most modern engines, with Ford even providing their warning on the original Cosworth owners paperwork regarding X amount of oil consumption every Y miles.

I just wondered how this compares to the 4G63 engine in the Evo 4 onwards, since this is another inline 4 cylinder 2 litre turbocharged engine and even has the same alloy head / iron block combo too ?

Cheers !

Edd

Kev.H

off topic the Honda Vtec eats oil you have to check it every fuel stop

Alps Pacino

my h reg crx vtec with 140k+ miles never used a drop

Azrael

Evos I know burn A LOT of oil from new. Actually Mitsubishi imported 7 Evo's 7 to POland and one of them had engine failure few hundred km's after being collected from dealer from lack of oil. The driver just drove it hard for some kilometer on the motorway and engine exploded very visually (bottom-end parts steaking out). Even new ones are known to spit about 1 litre per 1000km through breather too.

marco polo

iTrader: (1)

To be honest most sports engines will use a certain amount of oil anyway regardless of Marque ,

AlexF

you can't compair oil consumption on a yb and on a modern evo engine!

markk

iTrader: (2)

mine uses very very little

i tend not to measure its use in miles tho as it doesnt do alot of miles, but when it is out is out at full throttle for most of its life !

Graceland

what is the oil consumption figures ford quoted for the YB then?

Azrael

Yes you can :-((

Monte 76

One Litre every 6000 Miles!! Mine is using slightly more than that !

Chipperx2

I think thats I-VTEC, not standard Vtec standard VTEC works of oil pressure and is technically very simple IMO. I-VTEC I couldn't be arsed reading

POPEYE

think its a bit less than that monte

Monte 76

Yeah and at thirty sheets a can..... that's not funny!

Just read the handbook and it says "The oil consumption of the engine may be as much as 1 litre per 620 miles" I knew it was six something!

fernando_khan

just wondering mate how does your car fait with erst?? do u eat em?? how bout tuned ones?

xr2i-carl

more of using oil than burning it willonly burn oil when its worn!!!1

Ryan

ask spikey

Spiky

iTrader: (1)

twat

my engine pulled very good and produce good power, yeah at the expense of castrol RS

did 4 sessions at donnington and used 2.5litres

Dave Henshall

i can honestly say, my evo 6 gsr with the 350 conversion did not use any noticable abmount of oil between oil services of 3Kmiles. that was running on mobil 1 0-40 and i neever had any problem with tappets like some other people did.

AlexF

ok lets compair early 70s engines with late 90s ones... they are only 30 years apart..

What I ment is that its not FAIR to compair engine of such different eras.

alex

Alps Pacino

wouldnt the state of tune, effecrt the oil consumption and the fact that in the ford handbook it recomends 5/40 and hardly anyone i know with a cossie uses 5/40

Azrael

Yes, it's very unfair to compare it like that. I only tryied to say that any turbo petrol with high boost must use noticable quantities. Or let's say most of them will.

AlexF

Turbo cars usually use less oil...

The rings are sealed harder against the bore by the boost.

The Inlet and Exh ports of the head are under higher pressure so tend to blow the oil back into the head.

But if your turbo is knackered... thats another stroy all together!

alex

CossieEdd

I understand that high performance engines will generally use a bit of oil where as modern shopping cars usually won't but going back to my original question, why does the YB burn more oil than a 4G63 ?

Surely if it's just down to build tolerances then a freshly build YB shouldn't use drastically more than the Evo engine ? (assuming adequate oil breathing setup on both engines).

Azrael

Any engine burns oil. Only sometimes to little for us to notice.

AlexF

design...

material...

you can make a cosworth YB as good as new... or even better... but is that going to be a tight a tollerance as a new 4g63?