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The Lubrizol Relative Performance Comparison Tool for passenger car specificationshttps://online.lubrizol.com/relperftool/pc.html allows comparing industry and manufacturer lubrication specifications for protection levels, and it seems to indicate that American Petroleum Institute standards for...

Are the white Fram Pro filters (cheapest ones) the same as their orange Extraguard filters? The box for the orange Extraguard PH7317 and the website say 95% filration. The box for the white Pro FP7317 says 93% filtration, but the website says 99%.

I have several very small 2,000 RPM DC fans with ball bearings measuring about I.D. = 3/32", O.D. = 5/16". What would be a good lube to use on them? The bearings are unsealed and seem to have no lube in them, and there's not even oily residue or dust on the outside.

What grease should I use for unsealed ball bearings found in very small electric motors that spin at 1,000-6,000 RPM and similar in size to fan motors use in computers? I tried some ordinary NLGI #1 lithium grease in a couple, but the motors spun about 20% slower than normal until they ran for...

If aluminum based grease is a lot more water resistant than lithium grease, why does it seem that all car CV joints use lithium instead? This includes CRC/Sta-Lube #SL3174: "lithium 12 hydroxy stearate grease fortified with 3% moly disulfide and extreme pressure and anti-wear additives. Contains...

What kind of grease can I use in the non-sealed bearing of a convection oven blower (blows hot air into oven)? The bearing sits in the middle of a heating coil about 6" in diameter, and by the time it wears out it's turned blue, either from the heating element or a complete loss of grease.

Used Nissan truck, 2.4L engine, oil was changed by the dealer just before delivery, but I don't remember what color it was back then. I changed it again 1500 miles later, and it still had a red tint to it after the change. What could make the oil red? I don't think that automatic transmission...