i seem to burn alot of oil
its burning around 1litre for every tank of petrol, however i seemed to burn nearly all the oil within 40miles (3hrs) of driving, i was driving at a max of 50mph, oil was checked day before and was low,so i topped it up,
what oil would you use for a 500bhp 2.5 classic, milage is new as just been built,
thanks

 

make sure you have no oil leak first ...as I had a leak from the blanking plug at the top of engine , and I lose less oil than you do in the stated miles ,
mine is a new builts as well !

 

no leak anywhere parked and left alone in the garage during the week no traces anywhere of oil, no smoke, nothing

 

who builts the engine??...as its seams excessive
if its still been run-in, oil should be semi syn, if its run-in already use something like motull 15-40 fully syn

 

im not going to name i would always recomend but its not good to say as the problem is unknown
what would cause this problem
if the engine is rated at 400 - 500 bhp and its over 500bhp would this cause a threat

 

not an expert but mine's around 460-480, and its use very little oil (only notice oil low when I had a oil leak ! ).......I think you should ask the "builder of the engine " regarding its oil useage and if its normal for the said engine .......bearing in mind that some 2.5's DO use some oil

 

ok
i was told it would burn more oil then a 2.0, was given 4 litres of oil by the tuner and told to keep an eye on it, i drove home from the tuner, 130miles and pasrked up, in the morning i checked the oil to see what it should be at as an indication and it was low, topped up with around a litre but left it as that, few days later another half a litre and so on, then my pressure gauge alarm went off (defi) and see that i had no oil in the car,a day prior to diving it it was fine then 40miles later 4litres of oil somehow burnt away,
its used 7-8 ltrs of oil in a months ownership, driven about 10 times altogether,

 

m8 get its looked at asap !!
that is my advice

that is abnormal use of oil ...I've never put 7 litres of oil in my scoob in 6 years of ownership !!

 

well its just happened so i have to get it back to the tuner i just need to know the poosible ways it would burn oil

 

mines got about 3000 on now, burn next to nothing, did a change at 500 and after that at 2000 she's spot on.....

I'd be quite worried if your tuner gave you a pack of oil....
does she smoke at all?

do you know if you have the required oil pump upgrade?

Still I'd be very worried about that much consumption......

 

yep pump modified etc, no smoke etc nothing i always drive with a mate in a another car, white car and hes never said the car smokes and theres no marks of oil coming out of the exhaust as it would be on his bonnet,
if the pump failed how would the oil burn? i am not sure how the oil burns anyway

 

get it seen to asap

 

i am
but i want ideas of the possible problem causing oil to burn

 

what pistons are in at the mom ??

 

wiseco forged

 

ok .......i think you really need the technical boys to answer yr question,
have you try the ask on 22b.com ??

 

nope not yet
thanks anyways

 

Thats burning enough to be classed as a 2 stroke, On a serios note i would definately get it seen to as soon as possible.

 

my ej25 also has wiseco pistons and does use oil

certainly not like yours though . on a trip to stratford and back and a weekend of drag racing , i do approx 500 miles and 20 - 30 1/4 mile runs it probably uses just over a litre . always carry some with me though just in case , i did get warned when i was planning the 2.5 that it would use more oil than the 2 litre
i use motul 15/50 comp fully synth as already mentioned.

 

over 500bhp on a built 2.5 and the only thing my engine burns is petrol!

 

well its not being driven any more as it sounds like the big ends gone, loud knocking noise from the block,
how would it burn oil
i dont understand the proceedure of how it will burn all fast,
its being booked in to go back to the tuner but it got to go on a trailer,

 

There is a problem with your engine, it shouldnt use that much oil!

I have 2.5 sti with forged pistons and use about 500mil for about 500 miles of use, but that is to be expected with forged pistons which arent as tight a fit as the OE pistons.- I use motul 15w50

Take it back as the oil is way too much use even when running in.

Andy

 

i think its using motul 300v 15w50 (il check in a min)
i know its a problem with the engine, i just want to find out how it could be caused as its now done some serious damage i think,
thanks to defi's installed a few days prior i would never have known about the oil untill the engine blew,
the engine build is new, it was run in by the tuner, done 1000miles aprox and had the first oil change 500mile ago, i now have to get the car back to the tuner (130miles), with no money as the build cost me the best part of 20k, its about £200 for me to get it there by trailer,
just about ready to blow my top, but i need to keep calm, lol

 

20k

Feckin'NORA

hope you don't have to pay for a rebuild..........

mine uses oil too.............. maybe 500 ml to a thousand miles ish...

I haven't really monitored the useage V Miles..... but should do REALLY !!

I just keep a gallon of oil in the car and check it once a week..... about lunch time after a drive to work....

 

Do you not have a catch can? and is there anything in it ?

 

The company should come and get your car, you dont spend that amount of money and be expected to trailer your own car back to them!

 

i can see how this thread is going to end allready!

 

hunt and witches spring to mind



go on, name them. pictures might help

 

I've heard of this problem before i.e. 2.5 built engine, forged pistons, excessive oil usage.

Sorry to hear your big ends have gone but the engine was going to need stripped down anyway. In all likelyhood they have fitted the wrong sized pistons (too small) and the oil is getting out past them. Engines with forged piston can sound a little slappy until the pistons heat up and expand and a as a consequence use a little oil but I do mean a little, like a few ml.

I can send you a link or two to threads where this was happened before if you want.

Oh yeah, £20k??? WTF were you getting done for that? Surely not the engine build?

Best of lluck getting it sorted BTW.

 

£20K bill and the big ends has gone !!!! wtf, if its a new build return and get its seen to free of charge , maybe compensation as well !!

they must of seen you comming