Running in MY05 STI my way - what did you do ?
22 April 2005, 11:51 PM
#32
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He has a point that engine breaking (or any other kind of breaking) during running in is not good! 
As for engine braking - we'll leave that one up for debate. 
As for engine braking - we'll leave that one up for debate.
23 April 2005, 03:18 AM
#33
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cmon guys ....dont be so hard. i just edited my last post for the same mistake. to be fair about it he was offering his help to another chap who is looking for answers and it doesn't seem right to pick holes in spellings. he conveyed his post clearly,gave his information freely, you understood what was being said but the last remarks arent going to encourage him to offer any further help are they??
23 April 2005, 11:35 AM
#34
Originally Posted by buzzard
cmon guys ....dont be so hard. i just edited my last post for the same mistake. to be fair about it he was offering his help to another chap who is looking for answers and it doesn't seem right to pick holes in spellings. he conveyed his post clearly,gave his information freely, you understood what was being said but the last remarks arent going to encourage him to offer any further help are they??
I am now waiting for some wag to post a totally text reply
JohnD
PS Back to the subject of the thread???
23 April 2005, 11:53 AM
#35
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picked up my MY05 sti on the 4th of march, ran it below 4000rpm for the first 1000mls with the occasional 5000rpm, had it serviced at 1000 then kept running it at 4000prm because that is just the way i drive but occasionally when i am alone in the car on a lonely peice of dry camera free road i stretch its legs a little bit,,she is at 2400mls now and feels great.
23 April 2005, 01:18 PM
#37
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Can't honestly see that my above post (with smilies etc) was any more than attempt at humour/ gentle banter. A bit like text message comments above. 
Definitely nothing offensive unlike numerous posts I've seen elsewhere on this board.
Anyway, to get back on topic. I still think the "avoid engine braking" theory is up for debate. Combustion of rich mixture is generally cooler than combustion of lean mixture, hence adding fuel can keep temperatures down. However plain air or very little misture will either not combust or make a very small bang and so generate less heat, so won't cause a problem with running in. This is how intuitively it seems to me, but I'm prepared to be proved wrong!
Definitely nothing offensive unlike numerous posts I've seen elsewhere on this board.Anyway, to get back on topic. I still think the "avoid engine braking" theory is up for debate. Combustion of rich mixture is generally cooler than combustion of lean mixture, hence adding fuel can keep temperatures down. However plain air or very little misture will either not combust or make a very small bang and so generate less heat, so won't cause a problem with running in. This is how intuitively it seems to me, but I'm prepared to be proved wrong!
23 April 2005, 04:58 PM
#39
Originally Posted by hades
Can't honestly see that my above post (with smilies etc) was any more than attempt at humour/ gentle banter. A bit like text message comments above. Definitely nothing offensive unlike numerous posts I've seen elsewhere on this board.
That's how I took it actually
Anyway, to get back on topic. I still think the "avoid engine braking" theory is up for debate. Combustion of rich mixture is generally cooler than combustion of lean mixture, hence adding fuel can keep temperatures down. However plain air or very little misture will either not combust or make a very small bang and so generate less heat, so won't cause a problem with running in. This is how intuitively it seems to me, but I'm prepared to be proved wrong!
Definitely nothing offensive unlike numerous posts I've seen elsewhere on this board.That's how I took it actually
Anyway, to get back on topic. I still think the "avoid engine braking" theory is up for debate. Combustion of rich mixture is generally cooler than combustion of lean mixture, hence adding fuel can keep temperatures down. However plain air or very little misture will either not combust or make a very small bang and so generate less heat, so won't cause a problem with running in. This is how intuitively it seems to me, but I'm prepared to be proved wrong!
JohnD
25 April 2005, 08:07 AM
#40
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Very interesting debate and some interesting points.
Anyone have any opinions yet as to me being ok to leave the Fully Synth in without it doing any damage ?
Now done 1700 miles and it is starting to loosen up, I have clipped 7000Rpm a couple of time and does not seem too strangled due to tightness anymore (still is tight though, just noticeably less so). Booked in tomorrow for the PPP fitting.
Hope the extra BHP finishes off the loosening up a bit quicker.
Anyone have any opinions yet as to me being ok to leave the Fully Synth in without it doing any damage ?
Now done 1700 miles and it is starting to loosen up, I have clipped 7000Rpm a couple of time and does not seem too strangled due to tightness anymore (still is tight though, just noticeably less so). Booked in tomorrow for the PPP fitting.
Hope the extra BHP finishes off the loosening up a bit quicker.
25 April 2005, 11:39 AM
#41
I wouldn't worry, you won't do damage, but if you are concerned and it is nagging away in the back of your mind, it is quite easy to do an oil change and in this instance you wouldn't really need to disturb the oil filter
Out of interest, what is the oil currently in the sump?
JohnD
Out of interest, what is the oil currently in the sump?
JohnD
25 April 2005, 12:46 PM
#42
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Originally Posted by JohnD
I wouldn't worry, you won't do damage, but if you are concerned and it is nagging away in the back of your mind, it is quite easy to do an oil change and in this instance you wouldn't really need to disturb the oil filter
Out of interest, what is the oil currently in the sump?
JohnD
Out of interest, what is the oil currently in the sump?
JohnD
As it is only about 6 weeks old I would not touch anything on it, so unless it is essential to get the Fully Synth oil out I'm reluctant to pay a dealer to do it. I'm happy to leave it if it will do no damage other than take a little longer to loosen up fully. I'm quite happy with performance so far and it has loosened. Also PPP will make a difference tomorrow.
As for the oil.....no idea what they used thay just said "Fully Synth" in it now.
Thanks again
Si
04 January 2013, 09:20 AM
#43
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I had my bottom end replaced at the dealership and I was on semi synthetic and then 1,000 miles later went onto fully synthetic and 4,000 miles later she drives brilliantly!
04 January 2013, 09:38 AM
#44
04 January 2013, 09:22 PM
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I normally use a mineral oil for the first 200-250 miles keeping the revs below 3000 and using all different engine loads and engine braking etc.
Ill then change to a 10/40 semi for the other 750 odd miles, changing the oil
2-3 times during this period.
Then ill change to a 5/30 or 10/40 fully and gradually increase the rev limit until im happy with the way the engines running.
Is a mineral oil not recommended for the initial run in on a scooby lump as no-one seems to be using it in their fresh builds, ive never had an issue using it in other lumps ive built and generally its a preferred choice for the first run
Ill then change to a 10/40 semi for the other 750 odd miles, changing the oil
2-3 times during this period.
Then ill change to a 5/30 or 10/40 fully and gradually increase the rev limit until im happy with the way the engines running.
Is a mineral oil not recommended for the initial run in on a scooby lump as no-one seems to be using it in their fresh builds, ive never had an issue using it in other lumps ive built and generally its a preferred choice for the first run
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