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#4715854 - 04/04/18 08:24 AM Oil Change interval & Fresh Oil Break-in period
Kaiser Offline


Registered: 09/30/16
Posts: 91
Loc: Deutschland - Stütgart
Hello all,

I don't know if this article was already posted here, I looked for it but I didn't see it anywhere...

https://www.sae.org/publications/technical-papers/content/2007-01-4133/

I had seen on the forum (but I can not find the link) a person said that the oil had a "break-in period" and during this period the engine wear is higher.
So over an interval of 60000km, if we do 6 oil changes (every 10000km) instead of 2 oil change (every 30000km) we multiply by 3 the engine wear that was caused by the "running in oil".

What do you think about that ?
_________________________
2013 BMW F10 535i - BMW M TwinPower 0w-40
1994 BMW 850csi - Castrol Edge 10w-60

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#4715868 - 04/04/18 08:41 AM Re: Oil Change interval & Fresh Oil Break-in period [Re: Kaiser]
Cujet Offline


Registered: 02/15/03
Posts: 6974
Loc: Jupiter, Florida
Originally Posted By: Kaiser


What do you think about that ?


Incorrect. We know for a fact that extended oil change intervals increase cam chain and balancer chain wear. We also know that UOA wear metals testing shows lower wear metals in extended drain intervals. However, this is not indicative of wear rates. There have been many UOA results showing excellent wear metals on catastrophically failing engines.

Particulates build up and increase real world wear rates. Folks, change your oil and choose your viscosity carefully.
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#4715886 - 04/04/18 08:52 AM Re: Oil Change interval & Fresh Oil Break-in period [Re: Kaiser]
Kaiser Offline


Registered: 09/30/16
Posts: 91
Loc: Deutschland - Stütgart
So the UOA are just a good way to know how an oil keeps its specs during its life and not to know the engine health


Edited by Kaiser (04/04/18 08:52 AM)
_________________________
2013 BMW F10 535i - BMW M TwinPower 0w-40
1994 BMW 850csi - Castrol Edge 10w-60

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#4715917 - 04/04/18 09:12 AM Re: Oil Change interval & Fresh Oil Break-in period [Re: Kaiser]
Shannow Online   content


Registered: 12/12/02
Posts: 38972
Loc: 'Stralia
That paper takes engine oils that are used.

Some have thickened to over double their original viscosity, and have TBNs that should be condemned.

Then applies those (used) oils to wear suurfaces and measures reductions in wear and friction.

The paper does NOT say that extended drains mean less wear.

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#4715921 - 04/04/18 09:16 AM Re: Oil Change interval & Fresh Oil Break-in period [Re: Shannow]
Kaiser Offline


Registered: 09/30/16
Posts: 91
Loc: Deutschland - Stütgart
Originally Posted By: Shannow
That paper takes engine oils that are used.

Some have thickened to over double their original viscosity, and have TBNs that should be condemned.

Then applies those (used) oils to wear suurfaces and measures reductions in wear and friction.

The paper does NOT say that extended drains mean less wear.


That what I was thinking but I wasn't sure.
thank for this confirmation
_________________________
2013 BMW F10 535i - BMW M TwinPower 0w-40
1994 BMW 850csi - Castrol Edge 10w-60

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#4716001 - 04/04/18 10:07 AM Re: Oil Change interval & Fresh Oil Break-in period [Re: Kaiser]
69GTX Offline


Registered: 09/23/15
Posts: 3742
Loc: Connecticut
Originally Posted By: Kaiser
So the UOA are just a good way to know how an oil keeps its specs during its life and not to know the engine health


UOA's are a good way to determine the health of the oil....not necessarily the health of the engine.
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----------------

2002 Lincoln Cont 4.6L DOHC/ 81K mi /PPlat 5w30/FUG XG2
1999 Camaro SS M6 /19K /Mobil 1 0w40 /Fram UG /GM MTL-ATF
1969 Ply GTX/RRs

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#4716176 - 04/04/18 12:45 PM Re: Oil Change interval & Fresh Oil Break-in period [Re: Kaiser]
Linctex Offline


Registered: 12/31/16
Posts: 5694
Loc: Waco, TX
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"The evidence demands a verdict".
(Re:VOA)"it's nearly impossible to actually know the particular additives that are in there at what concentrations."

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