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Old 29th June 2010, 16:06   #16
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Originally Posted by bblost View Post
I am curious.
How does the engine know that it must consume more oil in the first 5k kms.

Is there some sort of a tap that is closed once the odo crosses the 5k mark.
By either the ECU or the Service center.
I think you made this query in sarcasm of VW.
The question should be 'how can a new engine consume oil'?
And then, how can it stop in 5000 kms?

Very weird.
There should be answers on VW forums.
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Old 29th June 2010, 16:10   #17
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The piston to wall clearance might be quite a bit which would cause blowby. Within this 5000 km mark, the rings would have seated in well and that would reduce the p2w clearance.
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Old 29th June 2010, 16:16   #18
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Quote:
Originally Posted by bblost View Post
I am curious.
How does the engine know that it must consume more oil in the first 5k kms.

Is there some sort of a tap that is closed once the odo crosses the 5k mark.
By either the ECU or the Service center.
And where does this tap lead to?
Cylinders/Combustion chamber? Then there must be smoke
Coolant lines? Then there must be oil in the coolant

Yeh tel jaata kahan hai??
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Old 29th June 2010, 16:19   #19
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Wow!!! yet another yeti blog. after ice section and new car review the mighty yeti treads onto the technical stuff section

Sam, great stuff as always but please post faster. My index finger hurts hitting the refresh button every two seconds and i cant explain to the IT guy in my company why only the f5 key is worn out
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Old 29th June 2010, 16:36   #20
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Quote:
Originally Posted by pranavt View Post
The piston to wall clearance might be quite a bit which would cause blowby. Within this 5000 km mark, the rings would have seated in well and that would reduce the p2w clearance.
Ring seating thing to happen on its own. How is that possible?

One reason I can think of is the higher friction levels during the run-in period of the vehicle. But then 500ml is a lot of oil.
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Old 29th June 2010, 16:52   #21
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Originally Posted by Sam Kapasi View Post

Haan synthetic oil hai shaayad
what's shayad ? I specifically told you Shell Helix Ultra 5W-40 / 0W-40

I owned 2 Skodas in the past remember ?
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Old 29th June 2010, 17:13   #22
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Ok this reminds me of the old ambassadors and fiats that we used to have. Before every "long" journey my dad would wake up in the morning and religiously open the bonnet of the car and say out loud:
- oil, check
- water, check
- brake fluid, check
- battery water, check
Then he would start the car and say out loud:
- battery charging (dynamo), check
- wipers, check
- no warning light glowing, check
Then he would walk around the car kicking the tires to check their pressure. And all this after he had taken it to the local mechanic the previous day for a complete check up in anticipation . And a "long" journey was anything beyond 50 km.
Miss the good old days.

By the way Sam - lovely start to the post. Maybe you could ask Akbar to take a hint from the old cars
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Old 29th June 2010, 17:38   #23
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But what little I know about fully synthetic is they tend to expell. It has something to do with their extra thinning at high temperatures (somebody put proper physics words).

Long back I used Motul fully synthetic on my bike and I had to top it up after every 600 to 800kms.
(Time to check in my Palio which is again running on Selenia)
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Old 29th June 2010, 18:14   #24
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^^ it has nothing do with synthetic or not. This happens in VW engines, i think proper description is given by pranavt above.
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Old 29th June 2010, 18:20   #25
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Quote:
Originally Posted by Rahulkool View Post
^^ it has nothing do with synthetic or not. This happens in VW engines, i think proper description is given by pranavt above.
I am thinking on both the lines. Contrary to what I as well as pranavt said , why this does not happen in other engines ?
I believe all the engines goes thru same stages during break-in, right?
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Old 29th June 2010, 18:23   #26
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Quote:
Originally Posted by bblost View Post
I am curious.
How does the engine know that it must consume more oil in the first 5k kms.

Is there some sort of a tap that is closed once the odo crosses the 5k mark.
By either the ECU or the Service center.
All engines have low oil pressure sensor. Only v.few new ones have a level sensor.

The initial high consumption is supposedly a part of the bedding in process. Its imperative that Skoda clearly mention this behaviour to their customers and provide them with the oil.

Last edited by Mpower : 29th June 2010 at 18:25.
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Old 29th June 2010, 18:26   #27
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Most searched person on google with name as sam :
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Old 29th June 2010, 18:29   #28
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Quote:
Originally Posted by Speed Pujari View Post
But what little I know about fully synthetic is they tend to expell. It has something to do with their extra thinning at high temperatures (somebody put proper physics words).

Long back I used Motul fully synthetic on my bike and I had to top it up after every 600 to 800kms.
This has to do with your bike engine's compression.
Plenty of Team-BHPians have used synthetic and with the right grade, this issue shouldn't occur.
I have heard of this happening in a Palio that ran 0W40 in our tropical weather.
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Old 29th June 2010, 18:37   #29
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Adding to what pranvt has mentioned, its also got to do with tighter clearance in the Mains & Connecting bearings in a new engine. That tighter clearance is what causing the oil to burn, the oil is really working hard to smooth out the friction, generating heat and causing oil to burn.
Once the clearance smooth ens out it should be normal.
Under such circumstances its wise to follow manufacturer recommendation of oil, if you put a regular oil it might cause a problem.
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Old 29th June 2010, 18:40   #30
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I'm waiting for the Dip Stick to make an appearance in this drama.

I know it is easy, in these days of electronic displays, and modern cars [usually] drinking little, if any, oil, but displays and sensors do go wrong, and has been mentioned that they usually indicate pressure rather than level.

SafeDrive's father would not have forgotten the dip stick.

Running a car with no oil, or failed oil pressure is fatal to the engine. I learnt that the hard way.

I also remember a friend who kept on filling with oil because the oil warning light was on. The dip stick would have shown him that the engine was practically overflowing with the stuff. I noticed that the wire had come off the sensor and was shorting out directly to the engine block!


.

Last edited by Thad E Ginathom : 29th June 2010 at 18:43.
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