On 7/26/2021 9:21 PM, Keith Wiese wrote:
where valves didn’t stick and didn’t have any
problems with valves and I think it was marvels mystery oil and I do not
remember what his recipe was
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
I've been running Marvel Mystery Oil for 22 years and 1200+ hours in two
high time engines, an 0-320 in the Tripacer and an 0-200 in the KR
without sticky valve problems. MMO recommends 4 oz to 10 gallon of fuel
but I run 4 oz to 5 gallon of fuel and a pint in the crankcase at oil
change time. Other fliers at my airport were reaming valve guides and
replacing cylinders during that time for sticking valves. 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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