I’ve started using the fuel additive made by this company AR6200 https://www.archoil.com/
and I have had great success with it. Very concentrated 1ml per gallon on stored fuel and old fuel.
They also make a friction reducer oil additive. Which uses nano technologies
(WS-2) https://en.m.wikipedia.org/wiki/Tungsten_disulfide but I’ve been purchasing WS-2 from another manufacture in Canada and adding to Gear oils for some time.But not in differentials with steering, about 1gram per quart. I have used the WS-2 in engines that had poor performance and have seen improvements
and I have had great success with it. Very concentrated 1ml per gallon on stored fuel and old fuel.
They also make a friction reducer oil additive. Which uses nano technologies
(WS-2) https://en.m.wikipedia.org/wiki/Tungsten_disulfide but I’ve been purchasing WS-2 from another manufacture in Canada and adding to Gear oils for some time.But not in differentials with steering, about 1gram per quart. I have used the WS-2 in engines that had poor performance and have seen improvements