meadowbrook Posted February 5, 2017 Report Share Posted February 5, 2017 Hi folks, any recommendations on the oil to use in a Borg Warner R7 overdrive? I bought mine from that guy in Venus, PA and he recommended 15w40 Amsoil. Quote Link to comment Share on other sites More sharing options...
knuckleharley Posted February 5, 2017 Report Share Posted February 5, 2017 I know nothing personally,but if it were me,I'd use 15W-40 Amsoil or the equivalent. 1 Quote Link to comment Share on other sites More sharing options...
DonaldSmith Posted February 5, 2017 Report Share Posted February 5, 2017 The semi-automatic (Klunk-o-matic) transmissions call for 10 weight oil. Their internal mechanisms are similar to the overdrive mechanisms. My guess is 10 wt oil. Quote Link to comment Share on other sites More sharing options...
classiccarjack Posted February 5, 2017 Report Share Posted February 5, 2017 4 hours ago, meadowbrook said: Hi folks, any recommendations on the oil to use in a Borg Warner R7 overdrive? I bought mine from that guy in Venus, PA and he recommended 15w40 Amsoil. I would ask Tim Kingsbury or George, one of those guys will know for sure. I know that the Fluid drives use non detergent 10w oil. And I need to find out what a R7 uses for my transmission if I use it in one of my cars. Please keep me in the loop when you solve this mystery. 1 Quote Link to comment Share on other sites More sharing options...
DJ194950 Posted February 5, 2017 Report Share Posted February 5, 2017 (edited) I believe the guy mentioned in Venus, Pa. Is George. One of the AoK boys- Now Tim K.. and George. Best, DJ Edited February 5, 2017 by DJ194950 2 Quote Link to comment Share on other sites More sharing options...
timkingsbury Posted February 7, 2017 Report Share Posted February 7, 2017 We use and recommend Amsoil 15w40 Heavy Duty Marine and Diesel Synthetic 12 TBN. And yes George is in Fertigs or Venus post office PA and in fact today is his 85 Birthday Tim 4 Quote Link to comment Share on other sites More sharing options...
laynrubber Posted February 7, 2017 Report Share Posted February 7, 2017 I am using GL1 rated mineral oil., Took me a while to find it but a farm implement place had plenty. I read about issues with the bronze syncros not liking "modern oil". Quote Link to comment Share on other sites More sharing options...
martybose Posted February 7, 2017 Report Share Posted February 7, 2017 8 hours ago, laynrubber said: I am using GL1 rated mineral oil., Took me a while to find it but a farm implement place had plenty. I read about issues with the bronze syncros not liking "modern oil". Napa auto parts is the easiest place to get this oil. Marty Quote Link to comment Share on other sites More sharing options...
meadowbrook Posted February 7, 2017 Author Report Share Posted February 7, 2017 I have been using the Amsoil 15-40 Diesel. My queston is, the trans weeps oil, would a change to non synthetic 15w40 or Gl1 gear lube help that? Quote Link to comment Share on other sites More sharing options...
laynrubber Posted February 7, 2017 Report Share Posted February 7, 2017 Martybose, correct on NAPA IF you are in the U.S. My particular NAPA is the Canadian division, with a good guy behind the counter but this oil was unobtainable to my Canadian location. I showed my guy the website....there it is....there is the GL1 rated oil....he then educated me on the Canadian NAPA website verses the U.S. Yours is better. Quote Link to comment Share on other sites More sharing options...
RodFru2u Posted February 8, 2017 Report Share Posted February 8, 2017 Darn shame about that laynrubber, I just picked up 2 us gal @ $11.25 each ( with Auto Club discount ) from the NAPPA in So Cal. Even the guys behind the counter never heard of it. I had to show them in their own catalog then, I had to find it on the shelf ( that's why I bought 2). 1 Quote Link to comment Share on other sites More sharing options...
plyroadking Posted February 9, 2017 Report Share Posted February 9, 2017 I've ran just about everything non-synthetic off the shelf in the 75-90w area, gl-1, 3, 4, 5, hypoid, non-hypoid, etc.. I think there's 85-90w gl-1 in it now, 50,000-60,000ish miles and only problem I ever had was losing a tooth on 2nd while trying to speed shift years ago. Quote Link to comment Share on other sites More sharing options...
T120 Posted February 9, 2017 Report Share Posted February 9, 2017 I tend to follow the manufacturer's recommended lubricants - use hypoid in the differential, not for the transmission. Quote Link to comment Share on other sites More sharing options...
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