What would be THE grease to run in a CV joint? My truck is getting old and I figure one of these days the boots will start to degrade on the front axle. Might just replace the entire assembly but then again a boot is usually a lot cheaper (if I catch it early). I suppose my go-to grease would be valvoline synpower. Readily available, specified for CVs and has performed well in every other application I've used it in so far. Is there something less costly and just as good? Similar price and notably better?