Bearings are made of soft metal to allow embedding. Particles of metal or sand (yes sand, the block is cast with sand and sand can remain in the block to come free at some time in the future), moving in the oil, are better embedded in a bearing than sticking out and cutting the crankshaft. This embedding metal is used in an attempt to save the engine, not to improve it. Better yet is clean oil.

Run oil too long and the filter media, especially if the filter is a good one, can plug and then the bypass opens and you have no filter at all.

 

Folks, do we really think we are smarter than 100+ mechanical engineers (who are conservative by nature) who helped design this car? Get serious. Follow the guidelines from the factory. If we follow factory guidelines for oil change fequency our engines will destroy themselves from something else before they do from oil related wear. This is spoken from 30 years of very high strung car ownership and the fact that I'm one of those conservative mechanical engineers. The BIG change was when synthetics became availible; now that was a quantum leap....

 

yes, you're wasting money.

here's a question: Has NO ONE even bothered to look in the owner's manual to see what it says about when to do what? That's what it's there for. To tell you how to own, operate, and maintain the car. The manual says 5000.

 

Depending on what kind of oil you are using and what kind of mods you have, 5k is WAY too long. Stock, I'm sure that works great, otherwise you are playing with fire IMO

 

key phrase. your unprofessional, and baseless opinion to be exact. if you want to change your oil too much, that's fine. just don't spread around the idea that you NEED to for all the people who don't know.

 

Agreed. I'll bet for most drivers of this car 5000 miles is fine. 3000 miles is playing it safe.

If it's a race car i could see it more frequently but guys that are doing it to take care of their baby are just wasting time and money.

 

Good read thanks for the link.