Do I need to strip the wheel off and grease the piston? Any problems with no grease on piston besides possibly noise? It's not like the brake pad will seize to the piston, right?
Can I mix Rotella t5 10w-30 with something like a 0w-20 to thin it out a bit and make a thinner 30 weight? Rotella 10w-30 is very heavy, almost like a 40 weight, correct? Would the cold flowing properties still be a 10 weight?