http://neptune.spacebears.com/cars/s.../oil-life.html

Oil Filter study:
http://people.msoe.edu/~yoderw/oilfi...lterstudy.html

 

OK guys, I am laughing my *** off here. The engines today are so precise this changing of the oil is just plane nonsense. Go to Europe and see what the oil change requirements are for the same vehicle. For instance, in the UK where you get a 36 month 60,000 mile warranty as standard on a little Toyota Yaris, the first oil change is at 10,000 miles. Go to a performance vehicle and it could be as high as 13,500 miles. And these are the same engines that are being imported into Europe as are being imported into the US.

At some stage, someone will start a federal investigation into why this is the case. The manufacturers here are holding customer hostage to unnecessary oil changes to keep their warranty. 3750 mile oil changes in the year 2006!!! Are you kidding me?

Volvo S40 T5 (With Turbo Charger), oil change intervals 7,500 miles. Come on Infiniti, stop screwing with the customer.

My old Vauxhall (GM) Cavalier in the UK in 1997 got an oil change every 9,000 miles per the warranty requirement and recommendation from GM. I handed it back to the leasing company with over 97,000 miles on it after 34 months of ownership and the engine was as good as the day I picked up the car. No loss of compression and no burning of oil. And this car was driven!!!

 

I plan to use the 7500 mile service interval listed in the owners manual. I also think it's wastefull to change it every 3K miles.

 

On modern cars I am all about the long interval, the manufacturer knows what my car needs better then the oil manufacturer knows about my car - besides the oil companies have a bit of a conflict of interest in offering honest advice about oil changes.

The one thing I am so interested in is this piece of mind the 3k and under oil change people feel they are getting? I mean when was the last time you heard of an engine failure not related directly to another part failing(not the oil OR filter) or at incredibly high mileage. I've asked this question at several forums and still no one can answer.

 

how much does the dealer charge for a oil change anyways? my honda cost like 24 bucks.

 

Sorry but isn't that what an oil filter is for?

 

Engines blocks are usually cast in sand molds. The early oil change rule was there because their would be sand in the oil once the oil circulated thru the hot block. Modern engines are now scrubbed clean and machining tolerences are tight and controlled so there is not much debris to begin with.
Oil filter will catch what the factory missed. There are various lubes used in the assembly process such as molly. These lubes wear off the parts and mix with the oil. Many engine builders think this is a good thing to have in a new motor for a few thousand miles. 3K miles is a good interval for the first change to be on the safe side.