First time poster here. Have been lurking for some time on various subjects. Now I have a question for the group... thanks in advance for your responses.
Some time ago, I acquired a couple of quarts of a gearbox additive. The additive is called GEAR-UP PLUS made by Multi-Mist Products (a division of NCH Corporation). The subheading on the bottle reads "Premium Gear and Bearing Oil Improver, H2". I have refrained from putting it into any application except for one -- a rebuilt 90degree gearbox on a 5ft rotary cutter -- high insult and low risk. Charted dosage recommendation is 1oz/pint for lighter weight gear oils (75W to 90W) and 1.5 oz/pint for heavier weight gear oils (90W and beyond). Thus far, no issues with the one application. Interesting observation: when adding to the 85W-140 gear oil prior to filling the gearbox, the consistency of the oil completely changed. It went from having the appearance of a liquid oil to that of very hot bubble gum -- sticky and somewhat stringy. I know a not very scientific description, but that is all I have. Those who gave me the two bottles lauded its performance on industrial gearboxes such as those from SEW and Dodge -- those used on belt conveyors and the like. The directions say "[n]ever mix with polyol ester- or diester based gear oils, asphaltic-type lubricants, or with "SCL" (sulfur-chlorine-lead)-type lubricants." The directions also say to never mix into automatic transmissions, tractors with common transmission and hydraulic systems, and the like. Just curious if anyone here has any experience beyond this with this additive. Specifically, wondering how this might perform in a transfer case or differential. I am about to change the transfer case and differential oil on an older (2005) Subaru replacing with the appropriate grade Schaeffer's 75W-90 and was wondering if even a small amount of this additive might positively affect longevity. Again, thanks in advance for responses.
Some time ago, I acquired a couple of quarts of a gearbox additive. The additive is called GEAR-UP PLUS made by Multi-Mist Products (a division of NCH Corporation). The subheading on the bottle reads "Premium Gear and Bearing Oil Improver, H2". I have refrained from putting it into any application except for one -- a rebuilt 90degree gearbox on a 5ft rotary cutter -- high insult and low risk. Charted dosage recommendation is 1oz/pint for lighter weight gear oils (75W to 90W) and 1.5 oz/pint for heavier weight gear oils (90W and beyond). Thus far, no issues with the one application. Interesting observation: when adding to the 85W-140 gear oil prior to filling the gearbox, the consistency of the oil completely changed. It went from having the appearance of a liquid oil to that of very hot bubble gum -- sticky and somewhat stringy. I know a not very scientific description, but that is all I have. Those who gave me the two bottles lauded its performance on industrial gearboxes such as those from SEW and Dodge -- those used on belt conveyors and the like. The directions say "[n]ever mix with polyol ester- or diester based gear oils, asphaltic-type lubricants, or with "SCL" (sulfur-chlorine-lead)-type lubricants." The directions also say to never mix into automatic transmissions, tractors with common transmission and hydraulic systems, and the like. Just curious if anyone here has any experience beyond this with this additive. Specifically, wondering how this might perform in a transfer case or differential. I am about to change the transfer case and differential oil on an older (2005) Subaru replacing with the appropriate grade Schaeffer's 75W-90 and was wondering if even a small amount of this additive might positively affect longevity. Again, thanks in advance for responses.
