I have a Bob-Cat zero turn mower with a Kawasaki FX600V. It has the Kawasaki 49065-7007 oil filter on it now. It has 35 hours on it. I found that the Wix 57035 is the correct spec from Wix. The 51348 is half the cost, filters better, is larger, has silicone ADBV, etc. Any reason to run or not run the Wix 51348?