Recent content by jake88

Originally Posted By: 440Magnum I can tell you for a fact that I can run my 2-cylinder air compressor, shut it down, and immediately drain the oil and the water comes out as separated blobs followed by the oil, not as chocolate pudding the way it would if engine oil were to be used in there...

Many water-in-oil emulsions are used as lubricants in oilfield and industrial applications. How much water are we talking about getting into these sumps - 10%? More? I can't imagine that much water is sitting happily at the bottom of the sump in these systems. If there is that much water, it's...

Originally Posted By: 440Magnum No. The emulsifiers in modern oils DO work, but when there's a whole lot of water and not much heat, you really do not want to emulsify all the oil into a milkshake. Its better to let the water remain separate. I imagine these systems have very small oil...

This isn't a piece of equipment I own or have even used. Generally, I recommend people use detergent over non-detergent in small, mobile sumps because it emulsifies water and reduces the chance of free water being sucked or splashed onto load zones where lubrication is required. Many people...

I've been looking everywhere for pump oil recommendations and it seems that almost everyone recommends or markets a non-detergent oil for triplex plunger pumps. Other than the typical warning ("Never use motor oil or other detergent oil"), it does not seem that there is a whole lot of why these...

Originally Posted By: MolaKule Maybe, but let's not leave the impression you can mix DOT 5.0 and 5.1 fluids; they are not compatible. Bolded for emphasis

Molekule hits the nail on the head. These tests are useful for lubricant chemists interested in screening or rating anti-wear and EP performance, but it is just one piece of information about an exceedingly complex product. I could see the draw to using the 4-ball to rate and market AW/EP...

There are xW-30 oils on the market at 3.5 cP HTHS that have formal builder approvals. If you are not going to dip below the 3.7 HTHS minimum of an XW-40 grade, then you are not going to see the added fuel economy benefit. EMA has all but said HTHS is so intimately connected to fuel economy that...

Most light-duty OEMs are recommending ILSAC oils bearing the API Starburst (or their own OEM specification in other cases). You'll never see them recommend any specific API category because the premise of the system is that it is backwards compatible. Talk to any oil person at an OEM, and...

Originally Posted By: MolaKule Originally Posted By: Colin01 Is there any advantages of using dot 3 brake fluid over dot4/super dot 4 or vice versa? No, because each newer fluid has a higher boiling point. Chemistry of Brake Fluids Borate esters do hydrolyze to boric acid and ether - the...

I always tell people to look for a J20C (or J20D for cold-weather) fluid. That is still the flagship specification for the industry. The inferior products typically will be made from line wash, napthenic base oils and with little or no additive. They'll make claims like JDT303 or call it "303...

API formula submission does not require the balance of base oils be reported, only the weight percent and trade names of dispersant-inhibitor packages, pour point depressants, and viscosity modifiers. Base oil brand and type should be reported, but this can be changed under what is called a...

The EMA, oil companies and regulators are basically all on board that the viscosity under high temp-high shear (HTHS) is inversely correlated with fuel economy. Right now I know that Cummins has approved oils with as low as 3.5HTHS and have seen field data and fuel trial data for some of those...

Glad everyone is starting to think about the limitations of the VI method. Not that it is a useless number, but the temperatures chosen are arbitrary and there are just many more measures that we could be using rather than kinematic viscosity. You could conceive of all kinds of better numbers -...

Originally Posted By: dailydriver The Sustina has an 8 point upper hand in viscosity index (229 to 221), a new high tech base stock, a sulfur-less ZP add pack, and a 12.2 TBN. The Mazda brew has a group 3+ (??) base stock, and a very high old school (as opposed to tri-muclear) organic soluble...