I'm thinking about switching to that 75w 140 in the tranny. Just wanted to be sure that it was safe to run in these newer transmissions. I ran 75w 140 gear lube and Redline shockproof in my older softails with the 5 speeds.
I been running red line in my 2010 since new , heavy gear oil and Vtwin trans oil. If I lived up north I might use the light gear oil. Not sure what viscosity their Vtwin trans oil is.
Been using Red Line heavy in shovels, Evo's and Twin cams for over 25 years with out fail.
2010 FLTRX , Stage 1, 13" Madstad, Mono tubes, SuperShox, Heritage style bars. Alpine CDE-HD149BT,Soundstream Picasso Nano Series PN4.520 , 5X7 and 6.5 Infinity Kappa speakers
If I have to explain ,you wouldn't under stand anyway.
Last edited by Big_gary; 10-11-2015 at 03:13 PM.