If you’ve changed your own oil before, then chances are you know what the “w” in 5w-20 means (HINT: it stands for winter grade, or rating). But have you ever considered what the numbers in 5w-20 might...
Aeroshell has announced a new packaging look on its aviation lubricants. The first packs to see the change are its Piston Engine Oils (PEO). The next round of products being phased in will be the Turbine Engine Oils...