Hmm Cthree - I have always been curious regarding the long service periods of the new BMWs etc.

I would be wary of this - as it is as much if not more a marketing move than an engineering one.

The problem is that your oil filter is not designed to last 15Kmiles. Try doing an earlier oil change, and see if your oil is sufficiently dirty to result in activating the oil filter bypass valve.

 

Hmmm, this sounds surprisingly like my theory of why they might have made the tire engineering choices they did...

 

[QUOTE]Originally posted by tze
[B]Hmm Cthree - I have always been curious regarding the long service periods of the new BMWs etc.

I would be wary of this - as it is as much if not more a marketing move than an engineering one.

The problem is that your oil filter is not designed to last 15Kmiles.

 

When you've been told all your life that you should start the day with a good breakfast, it's hard to accept the idea that you can skip it and be just as healthy.

That's kinda how the oil change thing is... I've always believed the best service I could do for any engine was to change the oil every 3,000 no matter what the manufacturer suggested. The exception to that rule was always after doing an engine rebuild when break-in oil was used to flush out any small metal shavings.

Then along comes Honda that says, they will put in a special break-in oil and recommend you run with it for 7,500 miles. For guys like me, that goes against our 'training'. But the nice thing about this forum is you can get answers as to why. We had Honda folks via the forum telling us the oil is slightly thinner than normal and contains more Molybdenum to provide the "slipperyness" that thinner oil may lose, as the FRM cylinders, etc. need more time for the proper break-in pattern's to be formed. Honda goes on to warn not change to synthetic oil too quickly as it is to slippery to seat the rings properly, and recommends using conventional motor oils. Some who question that logic and switch to synthetic earlier, later report a loss of power and switching back until they have 10,000 miles on the engine.

The oil analysis seems to confirm what Honda folks said. So, it would seem that their recommendations on leaving it in are also supported by good reason. I find it difficult to accept that a couple additional inexpensive oil changes is really going to drive up the average maintenance costs at the risk of engine wear. Could it be many of us just can't accept the change that comes with better lubricants and better engine building?

 

[QUOTE]Originally posted by dlq04
[B]....

Then along comes Honda that says, they will put in a special break-in oil and recommend you run with it for 7,500 miles.

 

[QUOTE]Originally posted by Bieg
[B]


I agree about the break-in oil but disagree about afterwards.

 

Considering the break-in oil has a considerable amount of Molybdenum, and Mobil apparently seems to have a higher content, is there any advantage to adding a product such as this http://www.molyslip.com/index/inauto.html for on going use?

Its been used for years up here, and I've used it in many of the vehicles I've owned, never had an engine problem either..not sure if this is why either.

Utah seeing as you seem to enjoy oils and their makeup, have a look at it and see if its snakeoil.

 

[QUOTE]Originally posted by Bieg
[B]


I agree about the break-in oil but disagree about afterwards.

 

I don't think anyone should make the assumption that the moly found by oil analysis started in the oil. It's much more likely a result of engine building.