Have tried thickeners only in a bug engine. Result? They seem to work for
about a tankfull and after that you are back where you started. You are
better off running a single weight 40 or a 20w50 than an oil thickener
addditive. A 40 weight might be even better for an engine burning
oil...if cold starts are not an issue. DC 

I would not recommend anyone using 10w30 above temps of 50 degrees for
extended periods in
any air-cooled engine....that's not my opinion; that's the manual's.... 
That is why a 5w50 synthetic intrigues me...the best of both worlds?
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David Carment
School of International Affairs
Carleton University
Ottawa, Ontario
K1S 5B6
voice - (613) 788-2600-6662
fax - (613) 788-2889
Email address: dcarment@ccs.carleton.ca
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