RE: Neoprene, Tygon, and Viton UV Resistance
Ok Guys
Will add my 3 pennies worth as I have used all 4 of the type's mentioned above and std pump gas with all the sbove complaints,
So for the last 5 years I have gone to the following combo Tygon type F and avation gas 100 oct ($4.45 per gal) mix @ 50:1Klota model sysn plus 1oz of seafome per gallon I don't leave any fuel in the tanks and I do not run the carbs dry with 6 monthe of winter I have had no gumming etc.
Hope this helps
Cheers Bob T