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If you had bothered to read it, you would have caught this:

Though they have gained rather wide acceptance among the motoring public, oil additives containing PTFE have also garnered their share of critics among experts in the field of lubrication. By far the most damning testimonial against these products originally came from the DuPont Chemical Corporation, inventor of PTFE and holder of the patents and trademarks for Teflon. In a statement issued about ten years ago, DuPont's Fluoropolymers Division Product Specialist, J.F. Imbalzano said, "Teflon is not useful as an ingredient in oil additives or oils used for internal combustion engines."

Those that think PTFE is helping their guns are mistaken.

Best,
Ted

I'm sorry Ted but I see no relationship between what works (or doesn't) in an internal combustion engine and what works or doesn't on the hinge pin of a shotgun and what substantiates your claim that PTFE is not providing necessary lubrication to the hinge pin of a shotgun that functions in an environment totally different than the innards of an internal combustion engine. Guess I'm just dumb.

Never play cards with Ted, he swindles.

He likes pumps too...




I bet it beats smelling like burnt motor oil

In my younger less discreet days and noting his home location of Minnesota I might have made the observation that he may tip a few in the evening also but thankfully I have matured beyond that stage of life.

TB, my old gunsmith -unfortunately not with us anymore- was a convinced
advocate of motor oil as a gun lubricant. His reasoning was that it had been
formulated for viscosity and to work in high temperatures -which the guns he
tended to in those days attained in use, as there were more birds or they were
used in competition- as a car engine does.

JC

I too have "smoked" a number of weapons durring combat with cyclic rates of fire approcaing 600 rounds per minute but none of them were equipped with a hinge pin. And yes copious amounts of motor oil poured on the receiver will keep a M2 Browning 50 cal. operating when a dab or two of Moble One grease or Breakfree would probably have been vaporzed in the first two minutes but we are not talking automatic weapons here we, at least I thought, were talking about sporting shotguns that utilize two barrels and are operating at a maximum rate of fire at about 24 rounds per minute.

Mobil One, Breakfree and watch oil for locks. Sparingly.
Just read the specks of Mobil 28 aviation grease.

The issue with PTFE in internal combustion engines was it's propensity to produce acid byproducts when burned in the piston ring/ring land area. This accelerated the deterioration of the piston ring lands and loosened the ring fit, allowing for loss of compression and increased oil burning, thus compounding the deterioration. This information came from a small airplane information bulletin published by the FAA a couple decades ago.

I agree with Ted. When I first heard the old saw about grease attracting dirt better than oil, it was obviously BS. But it's been repeated so many times it's caught on as the truth.

What property of grease vs. oil could account for this belief? Tackiness? If so, that's what you want so it stays where you put it.

I use an engine assembly lube on hinges and locking bolts. Jim Legg turned me on to this, and it works great. It stays put.

My XS has seen nothing but, it's tight as the day it was made 15,000 shells later and the lever is in the as delivered location. What lubrication product could perform better than perfection?