Ok new guy here, I've been lurking for a while but getting ready to order parts (leaking oil pressure sensor) and going to stock up on supplies. My question is, I currently run JD Turf Guard in our two mowers, John Deere x530 Tractor & Z930R, also have a 2012Kawasaki Mule I run 10-40 Kawasaki oil in. So the motors are a Kaw FS730V, Kaw 801V, and a Kaw 620V liquid cool fuel injected on the Mule. Looking for an all in one oil for the 3 machines, is Rotella t6 5w-40 the answer I'm looking for? Running the mowers mostly here in the hot dusty Kansas heat, Mule year round choring, idling, hunting etc. Or stick with what I been doing, 10-30 in the mowers 10-40 in the mule?