Buzzman wrote:Do it in the first 1500 miles. Get that oil out of there early.An aside: I've always suspected that car manufacturers use the cheapest bulk oil they can get when it comes to new engines. Everything to save a penny. No real evidence, but it just makes sense. They're going to use the lowest cost stuff they can get.After 10,000 miles, change to full synthetic.
A broad smile crept across my face when I read your comment about the manufactures using the cheapest oil they can buy, but you get credit for a 'save' by saying you have no real evidence of them doing it.
I hate to keep repeating the same message, but as Idok posted, your oil, filter, and lubrication questions can be answered by taking the time to read bobistheoilguy:
http://www.bobistheoilguy.com/...s.php
No, I don't work for those guys, but I, and thousands of people from around the world, read those forum threads on a regular basis.
I have not seen one drop (pun intended) of evidence, reading Used Oil Analyis on that site, that OEM oil is inferior to what we can buy to replace it.
All gasoline engines worldwide require the use of SM rated oil. For more information on how oil is tested, visit the American Petroleum Industry website:
http://www.api.org.
Are you making an allegation that the OEM's, in an attempt to save money, are using oil that does not meet API standards?
What would they gain, as they warranty their engines, in some cases up to 100,000 miles?
GM and Honda use an oil life monitor, and some people travel 7-10,000 miles on the factory fill, and change when the OLM tells them to change.
Honda even stated in their owner's manual not to change the factory fill until the OLM tells you to change it. Why, if Honda uses inferior, cheaper oil?
I am not debating the pro's and con's of the OLM, just showing that the manufactures have nothing to gain, and LOTS to lose if they filled the cars at the factory with inferior, non SM oil.
If you look at BITOG oil analysis reports, people have sent samples of OEM factory fill oil to be tested by respected testing labs.
NOT ONCE has a report come back indicating that the factory fill was inferior oil. In Honda's case, the lab report shows that the factory oil contains more additives that assist during break in of the engine.
I guess urban legends and old wives tales have a life of their own, and get get repeated forever. No, I don't work for an automobile manufacture!
Later,Leonard T.