Maintenance Matters

December 2000 Issue

Oil Labs Compared

Surprisingly, even with the same sample, different labs reach different results. Spending more doesnít get better service.

[IMGCAP(1)] Think about it: 40 times a second, an aircraft piston rockets to the top of the cylinder, stops dead in a couple of nanoseconds, reverses direction and plummets to the bottom of the jug, all the while trying to stretch the connecting rod like a piece of warm taffy and exerting enough smash on the bearings to reduce them to oily Babbitt pulp.

Or maybe itís better not to think about it. Which is precisely why it makes sense to send oil samples to an analytical lab and have them look for signs of impending doom. Oil analysis has been available in the GA piston-engine market for years and there are plenty of labs to pick from.

But pick one you must. With that in mind, we decide...

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