On 7/27/2021 8:24 AM, Flesner wrote:
I have no scientific proof that it works but I'm a believer. It also
keeps my plugs running clean of lead deposits.
As always, YRMV.................
Several friends of mine are partners in an RV7A that sees very little
flight time. At approx 300 hours on a new 0-360 engine it started
running rough on startup, one sign of sticky valves. They got carried
away discussing the pulling of all four cylinders and sending off for
repair. I talked them in to putting a quart of MMO in the crank case
and running the engine for several hours. The engine has not seen a
wrench since that time and is running fine.
My two engines were run 200 to 400 hours past recommended TBO without a
problem before they saw wrenches. This is not a paid endorsement. 😁
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