Geno, my friend, buddy, ......
Check out below link for many comparison tests
Bobistheoilguys Main Page
Here is the tech page direct from Schaeffer
#700 SUPREME 7000 SAE 15W-40
Here is a good possibilty to replace Grape Juice
Schaeffer Manufacturing - #740 SYNTHETIC LUBE E.P.
I have seen the famous Timken bearing test with my own eyes, I know what your thinking, everybody that performs those tests has the best oil... I provided the samples to be tested so I knew that they were legit, The Delvac, Rosmella, Valvoline, and some others all would lock up the wheel.... The Sch product would barely make it slow down, and you really had to put the weight on it to do that.. The others took very little force. I have also carefully inspected the chassis grease, I took mobil 1 syn grease in palm of my hand and used finger to swirl it around while water was being poured into hand, the grease would pick up the water and break down.. I fully cleaned my hands and did the same test with the Sch grease, the water just rolled off, it didnt soak into the grease or nothing.. Didnt wash off either. I was sold on those two products. Around here we have Meijer gas stations and they Diesel they sell is treated with a comprehensive additive package from Schaeffers, its some of the best stuff going. I am not an endorser of anything I dont think is good, those that know me know that. If I think something is good, I will tell you. I truly believe this stuff to be good . No BS.
Eric