Stan,
I just have a question.
If in fact you put Marvel in your oil just prior to you changing the
oil, why don't you, just run it all the time?

You have no idea, of how clean this stuff keeps the inside of your
engine.

It keeps the rings spinning free, keeps the lifters super-clean.

I have used this stuff for years and have found it to be one of the best
all round things you can do for your engine.

I run it in my gas, when I'm going on a road trip, to lubricate, the
valve stems and guides, and it also helps keep the injectors clean.

Later,

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Terry
74 Westy (Clementine)
85 GL