Sponsored by Mobil 1 motor oil ... If your car is consuming a lot of oil, should you use a thicker oil grade? ... The seating chart at Pope Francis’ funeral won’t prioritize Donald Trump’s ego.

The grade of motor oil is less often understood than the weight. In this case, "SP" can be used in cars that call for that grade or car's that call for anything alphabetically prior like SN.

For those unfamiliar with motor oil grades, close to 52% of the passenger car motor oils currently in use are SAE 5W-30 grade products. Second and third are 5W-20 and 10W-30, with an estimated 23 ...

Smaller oil galleries can easily cause reduced flow and lower pressure when a heavier grade such as 5W20 or 10W30 is used, just as the main crankshaft and piston-rod bearings are also designed ...