Break in Oil?

[bbscamp]

The salesman told me that Honda has a special (Break in) oil, that should stay in the motor for the first 5K miles...is this true? whats special about it?

Also, what is the correct break in procedure ? thanks!!!

[JOZ RIDG]

Originally Posted by bbscamp

The salesman told me that Honda has a special (Break in) oil, that should stay in the motor for the first 5K miles...is this true? whats special about it?

Also, what is the correct break in procedure ? thanks!!!

What? A salesman who actually knows something about what they sell.

True.

Those (in the know) here say the break in oil has alot of Molly content and to leave it in untill the Maitenance Minder tells you when to do an oil change.

Also forget the 3000 miles oil changes of the past OR those Fast Lube places that recommend it.

The break in procedure is on page 174 of your Maintenance Manual and is an easy procedure. (I have the early MM)

[ridgelinef4i]

I know moly is a friction reducing agent, can someone explain to me why they don't continue to use moly in subsequent oil changes? i would think it would lessen engine wear? or is it just too expensive for what you get?

Anyone know if the normal oil used in changes has a moly content?

[kanji]

Originally Posted by ridgelinef4i

I know moly is a friction reducing agent, can someone explain to me why they don't continue to use moly in subsequent oil changes? i would think it would lessen engine wear? or is it just too expensive for what you get?

Anyone know if the normal oil used in changes has a moly content?

Well, my first oil change, i used Lubro Moly Vol Synthesis 5w30, used to used this brand when i owned my previous vehicles i.e. VW Passat, Mercedez E320, after the the first, i switch to Mobile 1 5w30 Full synthetic. As for your question about moly in Dino Oil, you may have to research that further.

[2Hondas]

A high Moly oil will "fill-in" the small asperities of the metal to metal contact areas created from all of the casting, drilling, polishing, etc. when the engine is made. By using a high Moly content oil, this improves the seal at the metal to metal interface, making the thin-film lubricity of the oil work better. Continuing to use a high moly oil could cause some build-up, expecially when the engines get into high mileage. That is why Honda uses it, they have engineered the process of making the parts as best they can, and use the Moly as a last "polishing step" for breaking in the engine. This is one reason why so many people are really seeing the engine really start to break in at around 10,000 miles. It takes this long to seat the moving parts, due to the small tolerances of the parts when put together. Gotta give props to the Honda Engineers, they are probably the best in the business.
The Moly break-in period is one reason I will be using a synthetic when I get past the break-in oil. The main advantage of the synthetic is it's ability to stay on the metal parts, significantly reducing wear, when you start the engine. By reducing the cold start-up friction, the Moly laid down during the first 5,000 - 6,000 miles will keep doing it's job longer.

[csimo]

Moly (molybdenum disulfide) is used as a friction modifier in many motor oils. It reduces friction and improves fuel mileage if used in proper amounts.

We need to keep in mind that moly is a solid and too much is not a good thing. A few years ago many motor oils pushed PTFE resins (Teflon) as a great thing... another solid which we now know was actually a terrible thing to do to an engine.

Moly is a fairly cheap way to reduce friction. Some of the very best motor oils don't use moly at all. No, I'm not saying moly is bad, but it is a solid and should be kept at low levels. More is not better.

In the case of the break-in oil... Honda obviously feels that there's a need for high moly content during break-in. This does not necessarily mean that running a high moly oil after break-in is a good thing.