Anyone want to talk about break-in?

[85_Ranger4x4]

If you change your oil every 3000 miles you may as well just buy fresh oil from the store, and dump it right down the drain. Big Jim is right. A lot of the newer Trucks with oil change indicators don't turn the light on until around 7500 miles. Why would the people who designed the engine do that? because they know whats good for it. All the big motor companies are claiming to have long lasting engines, if 7500 mile oil changes were gonna hurt that claim, they wouldnt tell ya to do it!

When did we start discussing the difference between car and truck uses? Anyways, I use my truck for everything. 70 miles a day round trip to work, running at about 2200rpm the whole time, plus hauling hay/wood and random other stuff. The oil STILL comes out clean afterr 5k. I think on my next oil change i'm going to have it sampled, out of curiosity now.

I do like this video i found a while ago though, about oil: http://www.youtube.com/watch?v=AzZdwqozuFc

By "big motor companies" I figured you were referring to big trucks. I must have read that wrong.

My work trucks rarely run more than 15 miles at a time. A few of them have over 1 million miles on them.

Must be pretty old or they don't have much time to cool down between runs.

 

[Jason]

By "big motor companies" I figured you were referring to big trucks. I must have read that wrong.



Must be pretty old or they don't have much time to cool down between runs.

They are 2001's. They run 24/7.

 

[ngoti8tor]

I have broken in all my engines the same way that I intend on driving them. Run them hard for the first 100 miles to set the rings.
Read this article: http://www.mototuneusa.com/break_in_secrets.htm