Mobil 1 10w30
10-07-2003, 11:14 AM
#22
Registered User
Originally posted by cdelena
There is very good indication that these engines are shipped with a moly additive. Here is a quote from a Honda Europe repair bulletin that required the oil to be drained:
'Note 1 : During the assembly in the factory, new engines are filled with engine oil plus an additive called molybdenum. This additive facilitates the running in of the engine and its components. If the engine being repaired has covered less than 6,000 miles, add a can of molybdenum additive.
Adding molybdenum to an engine with more than 6,000 miles has no positive effect and therefore is not needed.'
There is very good indication that these engines are shipped with a moly additive. Here is a quote from a Honda Europe repair bulletin that required the oil to be drained:
'Note 1 : During the assembly in the factory, new engines are filled with engine oil plus an additive called molybdenum. This additive facilitates the running in of the engine and its components. If the engine being repaired has covered less than 6,000 miles, add a can of molybdenum additive.
Adding molybdenum to an engine with more than 6,000 miles has no positive effect and therefore is not needed.'
Moly is both an anti-friction and an AW compound. For friction reduction, it is a useful additive to extend fuel economy, which I do not see as a break-in issue. If low friction and high pumpability were critical, why wouldn't they recommend a synoil/moly combination? Seems paradoxical to me.
Moly is an effective anti-wear compound, and has been increased in the SJ spec oils in part to offset the lower amounts of phosphorous. Zinc, boron, and moly all work at different temps and are often combined. I could see how a break-in oil would want the right combination of these additives to ensure that if any boundary lubrication situations are encountered, there is adequate protection. But again, is it added (perhaps) or does Honda recommend that the high-quality and properly additived oil they provide be retained long enough to ensure a safe break-in? That is what I am postulating.
This explanation would also account for Honda's apparently hypocritical recommendations: "use no oil additives" thery say in the manual, but "ensure you add a moly additive" early!?! Isn't what is good for the goose also good for the gander?
And I wonder what is so different about Honda engines compared to the other car companies I mentioned. It is a puzzlement, but I will not lose a wink of sleep changing the oil out at 1000 miles. It is a sure way to ensure that any residual casting sand is out of the engine.
Here is some reading on topic:
http://www.micapeak.com/bike/ST1300/Oils1.html
http://faq.f650.com/FAQs/OILFAQ.htm
http://www.frontierequip.com/service/breakinoil.htm
http://www.ford-trucks.com/forums/archive/...pic/134046.html
http://www.foleyengines.com/DDSK/DrDieselS...ShopKink13.html
http://www.seansa4page.com/resource/breakin.html
10-07-2003, 03:15 PM
#23
Join Date: Jan 2003
Location: Gods Speed #57 Lemons #77
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I changed my engine oil at 3000 miles (severe service reccomendation). I then used Castol GTX which is supposed to have a higher than normal amount of moly. I now have about 9500 miles and oil consumption has stopped. My next change at around 12000 will be with Mobil 1 10w-30 and the second generation OEM filter.
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