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Wow, the discussion of this topic has changed a little in the last decade. http://www.bobistheoilguy.com/forums/ubbthreads.php/topics/179319/1

Your (Shannow's) paper is from the same group as the two I linked. It always worries me when most of the work on a topic is coming from the same lab.

Similar paper as above: https://www.researchgate.net/publication...t_Cooled_Piston

The paper linked below may be of interest to some. The authors develop a model to estimate cooling rates from piston oil jets. I hadn't really thought about how uneven cooling can distort the "roundness" of the piston. https://www.researchgate.net/publication..._diesel_engines

Several models have been without a drain for several years. I have a push mower that I flip onto a drain pan to change the oil. It is best done with little to no gas in the tank.

Hear is a year-old story that elaborates a little: http://archive.jsonline.com/business/new...-290423731.html

I am beginning to see Briggs and Stratton Enginges that recommend that the oil never needs to be changed. They claim the engines are sealed better to keep contaminants out and that it runs cooler. This doesn't seem like a good idea to me...

Just for clarity, Spermaceti oil (whale oil) was collected from a large sound-focusing organ located in the front of head. This organ is not the brain. Most industrial uses of spermaceti were banned in 1972 in the Unites States. After it was banned, development of alternative products...

It looks like it may be translated as "mineral of the snake". Perhaps it is mineral OIL of the snake.

For those interested in serpentinite as an oil additive see below. http://link.springer.com/article/10.1007/s11249-013-0123-0#/page-1 http://www.sciencedirect.com/science/article/pii/S0169433210013851 http://www.stle.org/Shared_Content/Exten...g_surfaces.aspx...

According to Mobil, it was first introduced in Europe in 1973 but was reformulated to make a "fuel saving 5W-20" that was introduced in the USA. https://mobiloil.com/en/article/why-the-...mobil-1-history

The bulletin actually lists an ATF (DexII) as a recommendation.

Moldy Mary's fruit was actually a cantaloupe instead of a grapefruit. The discover was important because it was the first example of a Penicillium that could be grown in suspension culture.

Without caged bearings or solder joints, I'm at a loss.

There's not a lot of silver in car engines (including bearings), partially because it very sensitive to zinc in the oil. On the other hand, heat exchange units (radiators) can have a lot of silver in the solder. Do you have an after market oil cooler or some other soldered component?

Originally Posted By: Shannow No question goes unanswered on BITOG... http://www.bobistheoilguy.com/forums/ubbthreads.php?ubb=showflat&Number=513610 Really, no question goes unanswered: http://www.bobistheoilguy.com/forums/ubbthreads.php/topics/449381/1

I would not exchange half-the-wear for half-the-mileage.

I would gladly exchange triple-the-wear for triple-the-mileage.

@ The_Eric: I think that you are conflating pour point depressants with viscosity index improvers. PPDs reduce crystallization upon cooling. VII unfold with heat to reduce thinning as the oil is heated. However, VII also fold with cooling to accelerate thinning upon cooling.

The copper test will tell you about whether the fluid needs to be replaced due to exhaustion of oxidation inhibitors. Glycol ethers are corrosive to copper. In a sense, the copper tests are reporting on a history of heat and oxygen. Moisture contamination is also a problem that can involve...