I've got a 2005 Suzuki Katana 750 (air/oil cooled). For most of its life it ran great on Kawasaki Synthetic 10-40. I then switched to Rotella T6 synthetic 5-40 (SN and no mention of JASO) which the clutch didn't like. I'm now running Rotella T4 dino 15-40 (SM JASO) and all is well again. I recently picked up two 5gal buckets of all fleet 15-40 for $35 each from tractor supply company. I think they were on blowout because they meet SM specs, not the new SN. On the label there is no mention of meeting a JASO spec or allison multi sump transmission spec. Does anyone have experience running this oil in a wet clutch application? Thanks.
https://hd.valvoline.com/our-products/valvoline-all-fleet-plus-e900-engine-oil https://hd.valvoline.com/our-products/valvoline-all-fleet-plus-e900-engine-oil
https://hd.valvoline.com/our-products/valvoline-all-fleet-plus-e900-engine-oil https://hd.valvoline.com/our-products/valvoline-all-fleet-plus-e900-engine-oil