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.................

Larry Flesner

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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. 😁

Larry Flesner
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