DaveBeck

iTrader: (12)

How much oil does your forged 2.5 burn?

I knew they did a bit but checked my oil and its gone from full to low in about 1k miles.

Doesnt smoke etc just wondering

magneel1

iTrader: (18)

Dave have a look @ this..

https://www.scoobynet.com/general-te...5-engines.html

I have same prob, mine burns a bit too much oil, I am told that the 2.5 should only burn around 1 Liter max around every 1000 miles.

Hope this helps

DaveBeck

iTrader: (12)

magneel1

iTrader: (18)

No prob

Shaun

Dave,
1ltr per 1k miles is not unusual on a forged 2.5. You should be checking your levels at least every tank full of fuel used though.

DaveBeck

iTrader: (12)

Cheers Shaun,

Made a **** up really. i checked oil from stone cold. after running and checking after 5 mins it was spot on.

I just wondered really about consumption on a forged piston 2.5. the STI 2.5's dont come with forged pistons do they?

alcazar

iTrader: (2)

No mate, they arer "eutectic" pistons, not the same thing at all

Shaun

Dave,
you should be checking oil level from cold.

DaveBeck

iTrader: (12)

what i thought. i expect forged pistons to burn a little more.

cant truely compare the STI 2.5's to a forged 2.5


Always checked oil 5-10mins after running

Shaun

Because of the inconsistancy issues of measuring the oil level, you should measure after a night of rest, cold on a flat surface.

Anger

iTrader: (4)

Dave mine goes from full to just below half way when ive done 1000 miles, a little more if im driving it hard

I check mine weekly when i clean it

Stuart Page

iTrader: (4)

Used to go from top to bottom position after 1k miles on my 2.5 forged build.
Fitted a 'return to sump' kit from a RCM catch can and its next to nothing now.
Job done.

TimH

iTrader: (11)

Mine burns about 100ml every 1000 miles...so basically hardly any at all. On track it dumps half a litre of oil in to the catch can every session - so I'll be fitting a return-to-sump setup shortly.

DaveBeck

iTrader: (12)

Cheers for input lads. nothing to worry about then

Shaun

It amazes me how badly a lot of built 2.5's breathe! This surely can't be a very good sign?!

Tim,
Have you got a proper baffled sump on yours (apart from the Cossie baffle plate)? As that appears to be the only difference, as mine does not throw oil in my catch can, assuming your current breathers are venting correctly.

TimH

iTrader: (11)

No, just the baffle plate - with hindsight the money I spent on ceramic coating the headers (which I then sold on and went back to using the OEM ones) and downpipe (which had to be repaired as it was leaking, so lost much of the coating in the process) would have been better spent on a baffled sump. You live and learn

I think it breathes OK - in normal driving I collect no oil at all; it's only on the track that it seems to be an issue.

Shaun

Built 2.5's Oil usage seems to be (in most cases, assuming nothing is actually wrong) down to the build make-up and tolerances. As long as it is expected by the engine builder I see no problem with it imo. Some use oil, some do not. Mine has always used oil and does 1ltr every 700-1000miles depending on level of abuse inflicted.

Tim,
I actually had the return to sump fitting put on the sump when my engine was first built. It was done as a precaution, just incase breathing was an issue. It turned out it wasn't so the fitting has always been blanked off and never used as of yet.

I'm not sure of the link between having a baffled sump and (presumably) crank case pressure build up that you experience on track, but perhaps apart from the actual breather system that you use (I don't know what this is or how it is plumbed in), I can't see what else is different in the specs.

I do hear of a few people having these symptoms though, so your certainly not alone.

Personally I would not use a an engine at these kind of spec levels on track, without a proper baffled sump being fitted. The faster you get, the more g's you pull, the more chance you have of oil surge.... for the cost of a sump, it is not worth the risk of doing your bottom end in imo.

Marx Mcrae

iTrader: (4)

Mine goes from the full line to low in about 1000 miles. I always thought that it was something wrong with the engine so im quite releaved now.

Marx Mcrae

iTrader: (4)

I check mine every fill up too just to make sure.