How long is 'break in'

[tehamaddmh]

The book for my '07 F250 4wd 6.0 power stroke says that synthetic oils may be used after break in.

I can't seem to find out what the break in period consists of. (It's about 15-20K miles for my bike).

I have 13K miles on the f250, mostly highway. I want to go to full Amsoil.

Anybody with some experience with this engine?

[motoroilinfo]

Your truck is well broken in by now. You may go fully synthetic with Amsoil as of right now. Don't forget your differential fluid also, Ford recommends a complete differential fluid change after 3000 miles and 800 miles if you are towing. To see what Amsoil Products fit your vehicle you may visit: http://productapplicationguide.motoroilinfo.com or you may fill out the form here: http://motoroilinfo.com/buy-amsoil/product-application-form/amsoil-product-information-form.htm and I will mail you out a product information packet asap.

[DanMar5858]

Yeah, 15k seems to be the average break in. If you plan on doing your own oil changes, and want convenience and longevity of your investment, go with an AMSOIL bypass oil filter. It is well worth the money. You just change filters, top off & be on your way. An oil sample is required but this gives you valuable information as to what is going on inside your engine.

[Diesel Engineer]

Regarding the use of AMSOIL Synthetic Motor Oils in brand new or rebuilt engines (gas or diesel), AMSOIL synthetic motor oil can be used during break-in trouble free. In fact, vehicles such as the Dodge Viper, Chevrolet Corvette, all BMW vehicles, all Porsche vehicles, Mercedes Benz, 4 Cadillac models, Pontiac GTO, Harley Davidson Screamin Eagle motorcycles and many others come factory filled with synthetic oil. However, since most new vehicles come filled with petroleum oil, it only makes good sense to change to AMSOIL at the first scheduled oil change interval. New engine components generate high levels of wear metals and can contain contaminants from assembly. By allowing the engine to operate with the petroleum oil until the first oil/filter change interval, the wear metals and contaminants are removed prior to installing AMSOIL. There are a couple primary reasons for this recommendation.

1. New engines or engine components generate high wear metals to begin with and generally contain debris from machining and assembly. It is more beneficial to allow these wear metals to collect in an inexpensive motor oil than to circulate throughout the crankcase for extended periods in a synthetic motor oil. By operating the vehicle to its first drain interval with a petroleum oil, these wear metals and manufacturing debris collect in the oil and are then flushed out of the crankcase when drained. This allows for a much cleaner operating environment for the synthetic lubricant.

2. Within the first miles of operation, if there are any defects in the assembly or workmanship of the engine components, then they may be corrected before installing the more expensive synthetic motor oil. Occasionally, rebuilt engines may have re-machined components or materials which can sometimes be mismatched. These problems will develop in a fairly short period of time. If excessive oil consumption or any other problem is noted, this should be corrected prior to changing to AMSOIL Synthetic Oil.

For racing applications, a synthetic motor oil can be installed right away. These engines are frequently disassembled and rebuilt under more exacting conditions and require the improved wear protection of a synthetic motor oil. Extended drains are rare due to contaminants such as fuel dilution and dirt entry are common, therefore we would recommend oil analysis to determine serviceability of the lubricant.

[Diesel Engineer]

I have written a book on Motor Oil and Engine Lubrication at www.motor-oil-engineers.com. If you would like a free copy you can go to www.motor-oil-engineers.com/thankyou1.htm and download a copy. There is a lot of very useful technical material in it that will help you out including a section that explains the break in process in detail.

[heyboom]

I agree with going to synthetic oil after the break-in, but in our case, when we rebuild an engine and install chrome molly rings, we have to use petroleum oil to get the rings to seat. Amsoil is just too slick to allow the rings to seat. After about 1000 miles, we then switch to Amsoil because the rings are seated and the wear metals are collected in the old filter. Thank you for this great site! It is long over due.

[Herb]

The book for my '07 F250 4wd 6.0 power stroke says that synthetic oils may be used after break in.

I can't seem to find out what the break in period consists of. (It's about 15-20K miles for my bike).

I have 13K miles on the f250, mostly highway. I want to go to full Amsoil.

Anybody with some experience with this engine?

Approximately 5000 miles on a diesel engine in such as a Ford Powerstroke you can make the switch to Amsoil synthetic diesel oil, in conjunction with the Amsoil EaO-88 oil filter, this combination will enable you have a Normal recommended drain interval of 25,000 miles or 1 year.

[diesel envy]

tehamaddmh,
How did you learn about "Amsoil", and I'll leave this open to everyone, Why choose it over Rotella or Valvoline SuperBlue?
What are the benefits that you are looking for in a synthetic switch?
Other than saving $$$$ ?
Many diesel owners choose not to change fluids themselves because there is so much of it. Typically 3-4 gallons.

[Herb]

No other oils can compair to the base stock and additive package of Amsoil. Amsoil is the only synthetic motor oil in the industy that offers in gas engines a normal recommended drain interval of 25,000/ 35,000 miles or 1 year, and diesel engines a Normal 25,000 mile/ 1-yr interval. After looking at the test data you will see that Amsoil all around comes out on top.
I came across Amsoil years ago through a internet search on oil's, after tons of reading and information it looked like something I wanted to look into further. Became a Amsoil Dealer, used the products and was hooked. Only regret was not finding it sooner.

[Heiseroil]

I am with Herb on this one. I actually heard of Amsoil from looking around diesel sites. I love my truck, and wanted the best available lubricants for it, regardless of cost. I started using Amsoil, and have loved the results I have gotten with it, as well as the extended drain intervals, and the cold weather performance. That was enough to get me to sign up as a dealer, and I have been happy with the decision ever since.
Scott