Not to give you a blast of wrath but you could have told us up front what the project was and saved much conjecture. Going to a lower viscosity oil as in running 50wt then using 10wt would show a reduction in pumping losses and viscous drag. Most of these oil additive demos show spinning gears in a plexiglass front case. And claim better lubrication due to a thicker oil film on the top gear. That just adds pumping losses to squeeze more and thicker oil out from between the gears. Running a shaft in a plain sleeve bearing uses a wedge of oil for the shaft to ride on. Thick oil requires a wider clearance. New high efficiency engines using 0W-20 oil use closer bearing clearances to hold the wedge. Backyard engineering with a thick oil in a narrow clearance bearing or thin oil in a wide clearance bearing. Will contribute to earlier bearing failure than normal. As for an additive that reduces parasitic drag in what we assume is a sleeve bearing application. And to reduce viscous drag ? Sorry but I don't see a miracle in a bottle gaining very much. About the only miracles in a bottle that works is stop leak to limp a machine home to the shop. A seal swelling agent to reduce old age/high hours seal leakage And a viscosity increaser to improve oil pressure in worn wide clearance bearings. Both of those are just to limp an old machine along. There are cooling system additives that restore corrosion inhibitor . Should be more of that stuff used. IPA fuel addive to absorb water without ruining plastic and rubber. Other than those five applications. A miracle in a can is a feel good placebo. If you feel the need to continue with the project. Using a 12V blower motor from a vehicle would a good place to start.
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Today's Featured Article - Women and Tractors - More Views From the Farmer's Wife - by Teri Burkholder. The top ten reasons why the judges wouldn't let you participate in the stock antique tractor pull: Hey, this is stock! It came with that V8 in it! That "R" on my tires stands for "really old" not radial! Blue gas? We thought it was a pretty color! What wire hooked to my throttle?
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