Do you find the symbols on a container of motor oil baffling? Even if you understand most of them, you may not know the ...

(For a sample list of break-in lubricants, see the chart titled, “Break-In Oil” in this article ... It is worth noting that the API specs only apply to engine oil with viscosity levels at 10W30 or ...

If you study the viscosity charts from the manufacturers (remembering ... I would say a low-viscosity engine oil may contribute anywhere from .5% to 3%, depending upon the type of operation.

That means these engines usually need lower-viscosity oil—oil that is “thinner” and flows more easily to form a cushion of ...

According to the SAE engine oil viscosity classification, the number preceding the “W” indicates the suitability of an oil for colder temperature start-ups, with lower numbers delivering ...

I spent a high-octane weekend with Valvoline & Hendrick Motorsports learning how proprietary preparations can give you the ...

Those numbers refer to the viscosity – or ‘thickness’ – of the oil. Modern oils are generally thinner, allowing the oil to flow around the engine quickly when the car is started ...

If you live or drive in hot or cold weather climates, then you will need an engine oil with a different ‘weight rating’. An oil weight rating refers to the oil’s viscosity or how thick the ...

We’ll explain when to use rust penetrating oil and when to use white lithium grease. But don’t worry about memorizing it all: There’s a printable chart at the end of this ... And it contains a special ...

You've probably been asked if you'd like to use conventional or synthetic motor oil in your car. What happens if you say the ...