I know that petroleum based lubricants are verboten as chamber lube in the Break-Barrel spring & nitrogen piston powered air rifles. Most "experts" will state that the silicone based oils are the ONLY ones that should be used and many of those folks even suggest avoiding silicone oils too!
My question is, does 100% silicone oil have a place in the lubrication of "pumper" type airguns? I've been reading many posts on lubing pumpers and it seems that almost everybody is using some sort of petroleum based lube. Non-detergent, straight weight motor oil appears to get the highest marks BUT it also seems like eventually, there is some degree of deterioration of components regardless of what type of petroleum based product is used. So what about silicone based lubricants? I know that the Crosman Silicone Lube is darn spendy (~$20/fl oz). 100% silicone oil is available for a lot less in R/C hobby shops (~$2/fl oz). Is anyone out there using the stuff on their pump cups, o-rings etc? What are the pros and cons? Thanks. Flex