The Stovebolt Site Forums The Shop Area General Truck Talk Motor oil Q & A

Here is a link to a motor oil engineering site. Very good information with A question answer section on the end. Joe
http://www.lnengineering.com/oil.html

Thanks for the link! I find this statement to be very interesting:
Quoting from the last paragraph:

Failure to use the right oil, use proper filtration, or observe proper changing intervals can affect the performance of even the best motor oil. This also includes changing the oil too often or not often enough. Against conventional wisdom, engine wear decreases as oil ages to a certain extent, which means that changing your oil more frequently actually causes engine wear

I haven't read that before anywhere else.

Why is it called motor oil when it goes in an engine?

huh, thats good info. I run synthetic in the new car and let it goe for a full 5000 miles. I have not ever heard that before either .

Birge

That really sounds rediculous. New motor oil causes wear in the engine. Old oil causes wear in the engine. So I guess we should find some slightly used oil and put in our engine. :/

Oh, yeah, did you know that synthetic oil is made for crude oil too!!!???? I thought synthetic was just that, man made!

Frank

Hmm... Maybe I could fill my crankcase with fresh oil, put several hundred miles on it, drain and sell for a premium above my original purchase price?
So who's gonna step up and be my first customer.

Hey! I got a 500 gallon tank of used oil! maybe I should do the same thing.

Some thoughts from a non-engineer. Oil molecules are massaged with additives until they are long and tubular...like the balloons they twist poodle dog shapes out of. As the molecules do their thing, sometimes they are sheared in the line of duty and become shorter. They have the ability to reconnect, but not all do. If the long, new molecules couldn't fit into a tight clearance, that fit might wear a bit more than if the older, shorter molecules were present. Could this be what that statement was referring to? I think this is sort of how it might work!!


Stuart

From Vavoline Oil: Question, which oil is the correct oil for my 1955/235 stock engine, an oil containing ZDDP? Answer: 10/30 Vavoline 1 racing oil, we do not recommend any of our synthetic products for your engine. Thank you....thought Id pass this along found the oil at NAPA they can also order it for you. Steve

Along with this info posted I would suggest you read Rob English's Tech Tips article in the current July/August issue of "Vintage Truck Magazine". This is a topic of discussion over on Inliners site too.

Drew, we been there done that. This is just some I ran across and thought some might find it interesting. Joe

Joe, Yes, actually I noticed your link on Inliners too. Very interesting stuff. Not sure if I should be out rounding up certain lubricants yet, but have to consider it for sure.

As I understand it, engine oil becomes more acidic over time. Oil manufacturers now make the oil more alkaline to neutralize the ph for most of the life of the oil. If you change you oil too often it causes you oil to be too alkaline and therfore more engine wear occurs.

In the past, before the changes in oil production, engines needed more frequent oil changes. Now, new cars recommend 7500 miles or more between changes. Of course, oil change shops recommend 3000 miles. It increases their profits.