Paul McBride, an expert on engines, retired after almost 40 years with Lycoming.
Q: I’ve seen this in Lycoming literature — “Keep in mind that all turbocharged Lycoming engines must be broken-in on ashless dispersant oil only” — but why is it true? My engine overhaul shop, Central Cylinder in Omaha, Neb., insists, in writing, that for its warranty to be valid, I must break my turbo’d IO-360 in on mineral oil.
PAUL MILLNER via e-mail
A: This requirement has caused some confusion for Paul and I bet he’s not alone. [Read more…]