[quote]ORIGINAL: Cashpoboy

I'm with Minnflyer on this. I never use it. I have pulled engines out of boxes that were sitting for decades that fired right up with great compression and not a hitch.



I too have run engines that have sat for decades, in a very damp pasement no less, that fired and ran like new. They were lefe due to college, war, marriage, career, kids, all those things that crop up unexpectedly. The engines survived, I am quite sure due to having been run on fuel with castor lube. Despite that experience I now use after run oils.

If one is a gambler, or not particularly concerned about the longevity of an engine I would recommend using it and forgetting it. It is after all a replaceable item. Especially if one subscribes to the throw away societyohilosophy. OTOH for a couple of pennies worth of oil and a few seconds of time the protection of the engine can be assured for years. It is an individual choice, and I am amazed at the thousands of words expended on the subject on the various fora over the years. Like the castor/syn debate it will never reach unanimity of opinion in the lifetime of those posting now.

jess